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单词 kilocalorie
释义

kilocalorien.

Brit. /ˈkɪlə(ʊ)ˌkal(ə)ri/, U.S. /ˈkɪləˌkæl(ə)ri/, /ˈkiləˌkæl(ə)ri/
Forms: Also kilocalory (rare).
Etymology: < kilo- comb. form + calorie n.
= calorie n. (a).
ΘΚΠ
the world > matter > physics > electromagnetic radiation > heat > [noun] > unit of heat > of specific amount
kilocalorie1894
gram calorie1902
Q1952
kcal.1954
1894 J. H. Raymond Human Physiol. ii. 166 It is estimated that an average man produces daily 2500 kilo~calories, which is about 100 kilo-calories per hour.
1909 Cent. Dict. Suppl. Kilocalory.
1923 H. Moore Textbk. Intermediate Physics xxii. 202 The Continental Engineers' Unit is..the kilogram-calorie or kilocalorie.
1969 Listener 16 Jan. 67/3 The food intake was very low, 1,600 kilo-calories per head per day, but the population was healthy and apparently active.
1971 Nature 12 Nov. 112/3 Moreover, SI units are nowhere mentioned, the traditional Torr and kilocalories being preferred.
1974 Sci. Amer. Sept. 162/3 The ‘calorie’ of nutritional parlance is actually a kilocalorie.
This entry has not yet been fully updated (first published 1976; most recently modified version published online March 2022).
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n.1894
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