calorie
/ˈkælərɪ/noun
(pl. -ies)
1- either of two units of heat energy卡, 卡路里（两个热量单位之一）：
1.1
- （亦作small calorie）（缩略词： cal）the energy needed to raise the temperature of 1 gram of water through 1℃ (now usually defined as 4.1868 joules)小卡（现一般定为4.1868焦耳）。
1.2
- （亦作large calorie）（缩略词： Cal）the energy needed to raise the temperature of 1 kilogram of water through 1℃, equal to one thousand small calories and often used to measure the energy value of foods大卡, 千卡。
词源
mid 19th cent.: from French, from Latin calor 'heat' + French suffix -ie （see -Y3 ）.