Calorie



GRE 蓝宝 考研

解释

GRE 红宝书

• n. 卡路里; 热卡
• ［英］ 卡路里 ( unit for measuring a quantity of heat) 大卡, 千卡 ( unit for measuring the energy value of food)
• ［记］ 联系词根calori ( 热) calorie ( 热卡)
• ［同］ 派生词: calorific ( adj. 生热的)

Webster Collegiate

also calory noun (plural -ries)

• Etymology: French calorie, from Latin calor heat, from calēre to be warm — more at lee
• Date: 1866
• 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
  • b. the amount of heat required to raise the temperature of one kilogram of water one degree Celsius ; 1000 gram calories or 3.968 Btu — abbreviation Cal; called also large calorie
• 2.
  • a. a unit equivalent to the large calorie expressing heat-producing or energy-producing value in food when oxidized in the body
  • b. an amount of food having an energy-producing value of one large calorie

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