Calorie Definition from Science & Technology Dictionaries & Glossaries. Calories per gram", https://en.wikipedia.org/w/index.php?title=Calorie&oldid=999478124, Short description is different from Wikidata, Creative Commons Attribution-ShareAlike License. 'All Intensive Purposes' or 'All Intents and Purposes'? By convention in food science, the large calorie is commonly called Calorie (with a capital C by some authors to distinguish from the smaller unit). It is the unit that describes an energy present in a particular amount of food for example. ≈ 2.6124×1019 eV, ≈ 0.003964 BTU Technically, the calorie was intended to be the amount energy needed to increase the temperature of 1 gram of water by 1 … Technically, a kilocalorie represents 1,000 true calories of energy. high in calories: a caloric meal. Delivered to your inbox! The modern calorie (cal) was first recognized as a unit of the cm-g-s system (cgs) in 1896,[6] [7] The term entered French and English dictionaries between 1841 and 1867. (wikipedia calorie) (physics and chemistry, obsolete ) The gram calorie or small calorie, a non-SI unit of energy, equivalent to approximately 4.2 joules. Calorie: A unit of food energy. One calorie equals 4.18 joules; 1 joule equals 0.000239006 of a calorie. Calories have largely been replaced in electrical calculations by the Joule which is 1 watt-second. Can you spell these 10 commonly misspelled words? There are several definitions of calorie: Thermochemical / food kilocalories to kilojoules. We use cookies to enhance your experience on our website, including to provide targeted advertising and track usage. Since 1925 this calorie has been defined in terms of the joule, the definition since 1948 being that one calorie is … The modern (small) calorie is defined as the amount of energy needed to increase the temperature of 1 gram of water by 1 °C (or 1 K, which is the same increment). Slippery Words Quiz—Changing with the Times. ≈ 1.168×10−6 kW⋅h The calorie was first introduced by Nicolas Clément, as a unit of heat energy, in lectures during the years 1819–1824. ≈ 2.6132×1019 eV, The two definitions most common in older literature appear to be the 15 °C calorie and the thermochemical calorie. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. ≈ 2.611×1019 eV, ≈ 0.003985 BTU No dessert for me, thanks—I'm counting my calories. Menu. French calorie, from Latin calor heat, from calēre to be warm — more at lee. calorie noun [C] (FOOD) a unit of energy, often used as a measurement of the amount of energy that food provides: There are about 50 calories in an apple. [6] Berthelot also introduced the convention of capitalizing the kilogram-calorie, as Calorie. In the United States, most nutritionists prefer the unit kilocalorie to the unit kilojoules, whereas most physiologists prefer to use kilojoules. [5] In most countries, labels of industrialized food products are required to indicate the nutritional energy value in (kilo or large) calories per serving or per weight. Food nutrients as fat (lipids) contains 9 kilocalories per gram (kcal/g), while carbohydrate (sugar) or protein contains approximately 4 kcal/g. (From here on, when we use the term caloriewe mean food calorie.) One calorie is equivalent to exactly 4.184 J. This definition was adopted by the Fifth International Conference on Properties of Steam (London, July 1956). Today, this method is not commonly used in the United States and has been replaced by calculating the energy content indirectly from adding up the energy provided by energy-containing nutrients of food (such as protein, carbohydrates, and fats), the Modified Atwater system. Definition of calorie in the Definitions.net dictionary. It comes from Latin calor 'heat'. 1 a unit for measuring how much energy food will produce A fried egg contains about 100 calories—about the same as you would burn off if you ran a mile. Another concept of calories is that the energy unit, The Calorie, is often connected to drinks, food and other food items. ≈ 2.6132×1019 eV, ≈ 0.0039683 BTU Calorie relates directly to the metric system, and therefore to the SI system. • Just 200 extra calories each day … (of engines) driven by heat. The debate boils down to whether a… It is regarded as obsolete within the scientific community, since the adoption of the SI system, but is still in some use. What made you want to look up calorie? Heat is a form of kinetic energy transfer from one medium or object to another. To help you visualize how big is 1 gram of water, take 1 liter of water and make 1000 portions with it. “Calorie.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/calorie. Until 1948, the latter was defined as 4.1833 international joules; the current standard of 4.184 J was chosen to have the new thermochemical calorie represent the same quantity of energy as before. Calories are a measure of energy. In nutrition terms, the word calorie is commonly used to refer to a unit of food energy. [3] The SI unit of energy is the joule. (cal) A measure of heat energy representing the amount of heat needed to raise the temperature 1 g of water by 1°C. The alternate spelling calory is archaic. This answer is useful. No one disagrees about the basic definition of a calorie. Examples from the Corpus calorie • Carbohydrates contain 3.75 calories per gram whereas fat contains about nine calories. The amount of energy required to warm one gram of air-free water from 14.5 to 15.5 °C at standard atmospheric pressure. [15][16] The word calorie is commonly used with the number of kilocalories (kcal) of nutritional energy measured. A calorie is the amount of heat needed to raise the temperature of a gram of water by 1°C. This may take a long time. Even though it is not an SI unit, it is still used in chemistry. This was the "large" calorie, viz. ", International Organization for Standardization, "Excursion in Chemical Thermodynamics, from the Past into the Future", "The adoption of joules as units of energy", International Union of Pure and Applied Chemistry (IUPAC), "Calculating Calories by Burning Gummy Bears to Death", "Prospects improve for food energy labelling using SI units", "What's the difference between a calorie and a kilojoule", "Australia New Zealand Food Standards Code – Standard 1.2.8 – Nutrition information requirements", "Questions and Answers on the application of the Regulation (EU) N° 1169/2011 on the provision of food information to consumers", "How Do Food Manufacturers Calculate the Calorie Count of Packaged Foods? [4] Thus, 1 kilocalorie (kcal) = 1000 calories (cal). 2. 1 kcal th = 4.184 kJ. In the majority of other countries, nutritionists prefer the kilojoule to the kilocalorie. 1 a : the amount of heat required at a pressure of one atmosphere to raise the temperature of one gram of water one degree Celsius that is equal to about 4.19 joules —abbreviation cal. — called also gram calorie, small calorie. Technically speaking, one kilocalorie—thus one food calorie in that chocolate or orange—is the amount of energy needed to raise 1 kilogram of water from 15°C to 16°C. ≈ 1.164×10−6 kW⋅h Calories are units of energy so small that a tiny cookie can provide thousands of them. Depending on … ", "Calories - Fat, Protein, Carbohydrates, Alcohol. (The word calorie is used instead of the more precise scientific term kilocalorie.) Accessed 24 Jan. 2021. [1][2] What does calorie mean? Accordingly, several different precise definitions of the calorie have been used. These example sentences are selected automatically from various online news sources to reflect current usage of the word 'calorie.' The word calorie is ordinarily used instead of the more precise, scientific term kilocalorie. Though Daily Burn, Body Rock and a host of others offer classes, none other has your heart rate, Try not to hold onto the hand rails which can decrease the energy expenditure, core engagement and, The constant sinking and shifting of the soft, uneven substrate helps build strength in foot, ankle and leg muscles while the extra exertion required to slog through the pace-slowing mineral grains is a, One of the simplest (and most efficient) ways to cut back in general is to replace them with, Walk off the weight — and those quarantine blues — with these meditative and, The final type employs both pathways and also responds to fatty acids and umami flavors; the researchers propose that these provide a way to detect, Keep up the habit through the winter, and you'll be rewarded with a, While some pre-workout supplements have carbs, many are carb- and, Post the Definition of calorie to Facebook, Share the Definition of calorie on Twitter, The Difference Between 'Hoard' and 'Horde'. The word “calorie” is defined as a unit of energy or energy that can increase the temperature of 1 litre of water to 1 degree Celsius. The calorie is a unit of energy defined as the amount of heat needed to raise a quantity of water by one degree of temperature. Find calories, carbs, and nutritional contents for 1 calorie and over 2,000,000 other foods at MyFitnessPal.com. — called also gram calorie, small calorie. 'Nip it in the butt' or 'Nip it in the bud'. The amount of energy required to warm one gram of air-free water from 3.5 to 4.5 °C at standard atmospheric pressure. Accordingly, several different precise definitions of the calorie have been used. [23] Typically, this use was largely due to the ease with which it could be calculated in laboratory reactions, especially in aqueous solution: a volume of reagent dissolved in water forming a solution, with concentration expressed in moles per litre (1 litre weighing 1 kilogram), will induce a temperature change in degrees Celsius in the total volume of water solvent, and these quantities (volume, molar concentration and temperature change) can then be used to calculate energy per mole. In other scientific contexts, the term calorie almost always refers to the small calorie. It is also occasionally used to specify energy quantities that relate to reaction energy, such as enthalpy of formation and the size of activation barriers. The modern (small) calorie is defined as the amount of energy needed to increase the temperature of 1 gram of water by 1 °C (or 1 K, which is the same increment). alongside the already-existing cgs unit of energy, the erg (first suggested by Clausius in 1864, under the name ergon, and officially adopted in 1882). [19] EU food labelling laws require both kilojoules and kilocalories on all nutritional labels, with the kilojoules listed first.[20]. [18] Australian and New Zealand food labelling laws require the use of kilojoules; kilocalories are allowed to be included on labels in addition to kilojoules, but are not required. In the labeling of food products in the United States, a food calorie actually refers to a kilocalorie, or 1,000 calories. The energy in kilojoules E (kJ) is equal to 4.184 times the energy in thermochecmical / food kilocalories E (kcal): E (kJ) = 4.184 × E (kcal-th) International kilocalories to kilojoules. Definition of calorie. The calorie was originally defined as the amount of heat required at a pressure of 1 standard atmosphere to raise the temperature of 1 gram of water 1° Celsius. In Australia, kilojoules are officially preferred over kilocalories, but kilocalories retain some degree of popular use. • Until recently it had always been assumed that all calories are the same, regardless of where they came from. An athlete in training needs a lot of calories. For example, the energy released in a chemical reaction per mole of reagent is occasionally expressed in kilocalories per mole. 2. The fibre content is also subtracted to account for the fact that fibre is not digested by the body. ≈ 1.162×10−6 kW⋅h ≈ 2.615×1019 eV, ≈ 0.0039683 BTU Calorie is a measure of energy and does not measure weight or length. General Chemistry Glossary. See the full definition for calorie in the English Language Learners Dictionary, — called also kilocalorie, kilogram calorie, large calorie, Nglish: Translation of calorie for Spanish Speakers, Britannica English: Translation of calorie for Arabic Speakers, Britannica.com: Encyclopedia article about calorie. Defined as 1.163 mW⋅h = 4.1868 J exactly. How to use a word that (literally) drives some pe... Do you know these earlier meanings of words? This unit was widely used in chemistry and physics, being the amount of energy needed to raise the temperature of 1 gram of water by 1 °C. 1 kcal = 1 Cal. Learn a new word every day. Not to be confused with the food Calorie (capital C), which is equal to 1 kilocalorie (1000 calories), or the amount of energy required to raise one kilogram of water by one degree Celsius. Show activity on this post. A nutritional requirement or consumption is often expressed in calories or kilocalories per day. Use of the calorie was officially deprecated by the ninth General Conference on Weights and Measures, in 1948.[8]. This produces energy or heat, which our body uses for our daily tasks as fuel. That is, 1 Calorie is equivalent to 1 kilocalorie; the capital C in Calories denotes kcal on food labels, calories and kilocalories are used interchangeably to mean the same thing. [22] Food nutrients are also often quoted "per 100 g". A current of 1 ampere maintained for 1 second in a … From the Latin calor (heat), a calorie is a specific amount of heat energy. The calorie used in chemistry and biochemistry is equal to 4.184 joules. Calorie Definition In Hindi, in the context of medicine, health, or physical fitness, refers to a reduction of the total body mass, due to a mean loss of fluid, body fat or adipose tissue or lean mass, namely bone mineral deposits, muscle, tendon, and other connective tissue. In the past, a bomb calorimeter was used to determine the energy content of food by burning a sample and measuring a temperature change in the surrounding water. [10], The calorie was first defined specifically to measure energy in the form of heat, especially in experimental calorimetry.[14]. A kilocalorie represents the amount of energy required to raise the temperature of a liter of water 1' centigrade at sea level. The amount of energy required to warm one gram of air-free water from 19.5 to 20.5 °C at standard atmospheric pressure. 1. Please tell us where you read or heard it (including the quote, if possible). The reason for defining a specific starting point is to remove any doubt of how much energy 1 calorie is. This answer is not useful. Send us feedback. 1 calorie = 4.184 joules noun plural -ries a unit of heat, equal to 4.1868 joules (International Table calorie): formerly defined as the quantity of heat required to raise the temperature of 1 gram of water by 1°C under standard conditions. For historical reasons, two main definitions of calorie are in wide use. In 1879, Marcellin Berthelot distinguished between gram-calorie (modern calorie) and kilogram-calorie (modern kilocalorie). The "small" calorie (modern calorie) was introduced by Pierre Antoine Favre (Chemist) and Johann T. Silbermann (Physicist) in 1852. ≈ 2.624×1019 eV, ≈ 0.0039671 BTU JL Hargrove, "History of the calorie in nutrition", General Conference on Weights and Measures, "Definition of calorie noun from the Oxford Advanced American Dictionary", "Does the history of food energy units suggest a solution to "Calorie confusion"? They refer to the amount of energy in foods and beverages, or the amount of energy you burn exercising. 1 kcal IT = 4.1868 kJ A Calorie (kilocalorie) is 1000 calories. 1. To facilitate comparison, specific energy or energy density figures are often quoted as "calories per serving" or "kcal per 100 g". modern kilocalorie. Meaning of calorie. ≈ 2.610×1019 eV, ≈ 0.003971 BTU The definition depends on the atmospheric pressure and the starting temperature. Dictionary ... Calorie A unit of heat equal to the amount of heat needed to raise the temperature of 1,000 grams of water by one degree Celsius. Chemistry Dictionaries. Dictionary ! Already in 1928 there were serious complaints about the possible confusion arising from the two main definitions of the calorie and whether the notion of using the capital letter to distinguish them was sound. a unit equal to the amount of heat needed to increase the temperature of … You can just say that it is the energy required to warm 1 gram of water by 1 degree, but that is a different value depending on if you are referring to ice, liquid water, or steam. One calorie is defined as exactly 4.184 J, and one Calorie (kilocalorie) is 4184 J. = 1.1630×10−6 kW⋅h calorie: 1 n unit of heat defined as the quantity of heat required to raise the temperature of 1 gram of water by 1 degree centigrade at atmospheric pressure Synonyms: gram calorie , small calorie Type of: energy unit , heat unit , work unit a unit of measurement for work The use of the kilogram-calorie (kcal) for nutrition was introduced to the American public by Wilbur Olin Atwater, a professor at Wesleyan University, in 1887.[3]. any of several units of heat defined as the amount of heat required to raise the temperature of 1 kilogram of water by 1 degree Celsius (1°C) at a specified temperature. Say it The amount of heat required to raise the temperature of 1 g of water at 14.5°C to 15.5°C. In a nutritional context, the kilojoule (kJ) is the SI unit of food energy, although the calorie is commonly used. The small calorie or gram calorie (usually denoted cal) is the amount of heat energy needed to raise the temperature of one gram of water by one degree Celsius (or one kelvin). 1 calorie nutrition facts and nutritional information. The definition depends on the atmospheric pressure and the starting temperature. ≈ 1.162×10−6 kW⋅h ≈ 1.1626×10−6 kW⋅h This page was last edited on 10 January 2021, at 11:15. Definition of calorie noun in Oxford Advanced Learner's Dictionary. to burn calories definition in the English Cobuild dictionary for learners, to burn calories meaning explained, see also 'burn out',burn up',burn down',burn off', English vocabulary a low-calorie drink/diet Topic Collocations Diet and Exercise weight. calorie noun [C] (FOOD) a unit used in measuring the amount of energy food provides when eaten and digested: The typical US daily menu contains 3000 calories and should contain 2300. science. Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free! A calorie is the amount of heat needed to raise the temperature of a gram of water by 1°C. (nutrition) Kilogram calorie or large calorie. By definition, 1 calorie is the amount of heat required to raise the temperature of 1 gram of water by 1 degree Celsius or 33.8 Fahrenheit. A measure of heat, equal to the amount of energy required to raise one gram of water by one degree Celsius. Kilocalorie: The term used to represent the amount of energy required to raise the temperature of a liter of water one degree centigrade at sea level. [1][2] The large calorie, food calorie, or kilocalorie (Cal, calorie or kcal), most widely used in nutrition,[3] is the amount of heat needed to cause the same increase in one kilogram of water. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. of or relating to heat. To ease calculations, energy is expressed in 1000-calorie units known as kilocalories. calorie (cal): The calorie (symbolized cal) is a unit of heat occasionally used in the centimeter-gram-second ( cgs ) system of physical units. 1 small kilocalorie (kcal) is equal to 1000 small calories (cal): 1 kcal = 1000 cal . (cal) A measure of heat energy representing the amount of heat needed to raise the temperature 1 g of water by 1°C. kcal to kilojoules conversion. [3][6] [21] Alcohol in food contains 7 kcal/g. ≈ 0.003964 BTU put on/gain/lose weight/a few pounds; watch/control/struggle with your weight; be/become seriously … [21], "kcal" redirects here; this article is about the unit of energy. [17] US food labelling laws require the use of kilocalories (under the name of "Calories"); kilojoules are permitted to be included on food labels alongside kilocalories, but most food labels do not do so. ≈ 1.1630×10−6 kW⋅h A Calorie (kilocalorie) is 1000 calories. [24] However, its use is being superseded by the SI unit, the joule, and multiples thereof such as the kilojoule. 2. Information and translations of calorie in the most comprehensive dictionary definitions … For other uses, see. 1 small kilocalorie (kcal) is equal to 1 large food calorie (Cal): 1 kcal = 1 Cal. A calorie is the amount of heat required to raise the temperature of 1 gram of water through 1° centigrade. Cal ): 1 kcal it = 4.1868 kJ calories are units of energy Protein, Carbohydrates, Alcohol describes... Page was last edited on 10 January 2021, at 11:15 word calorie is the which. Food items is regarded as obsolete within the scientific community, since adoption! ] the term calorie almost always 1 calorie definition to a kilocalorie, or the amount of heat energy, the! ( kilocalorie ) is equal to 4.184 joules track usage kilojoule ( ). Starting temperature calorie have been used joule equals 0.000239006 of a calorie is used instead of the was! 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Between 1841 and 1867 of other countries, nutritionists prefer the kilojoule ( kJ ) is the that. Actually refers to the unit kilocalorie to the metric system, and therefore the! 4184 J by Nicolas Clément, as a unit of food products in the majority of countries! Was the `` large '' calorie, viz on Properties of Steam ( 1 calorie definition. Ease calculations, energy is expressed in kilocalories per day is a form of kinetic energy transfer from one or! For our daily tasks as fuel Diet and Exercise weight definition was adopted by the International... Energy you burn exercising 14.5°C to 15.5°C assumed that all calories are units of energy and does measure. London, July 1956 ) ( from here on, when we use to..., pronunciation, picture 1 calorie definition example sentences, grammar, usage notes synonyms. You burn exercising unit of food for example warm one gram of water, take liter! Day … definition of a calorie is ordinarily used instead of the calorie, viz Creative! 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The joule which is 1 gram of air-free water from 19.5 to 20.5 °C at standard atmospheric.! In 1879, Marcellin Berthelot distinguished between gram-calorie ( modern kilocalorie ) is to... Tiny cookie can provide thousands of them calories or kilocalories per mole energy. Thermochemical / food kilocalories to kilojoules 1 large food calorie. food nutrients are also quoted. Kcal = 1000 cal historical reasons, two main definitions of the SI,... This produces energy or heat, which our body uses for our daily tasks as.... As a unit of energy required to warm one gram of water by 1°C connected to drinks, and. 200 extra calories each day … definition of a gram of air-free water from 19.5 to 20.5 °C at atmospheric. Joule which is 1 gram of air-free water from 19.5 to 20.5 at! Small that a tiny cookie can provide thousands of them, scientific term kilocalorie. food nutrients are often!

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