calorie

Estimated CEFR level: C2 — Proficiency

Estimated from word frequency; not an official CEFR classification.

Definition

  1. noun a unit of heat equal to the amount of heat required to raise the temperature of one kilogram of water by one degree at one atmosphere pressure; used by nutritionists to characterize the energy-producing potential in food
  2. noun 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

Etymology

Borrowed from French calorie, formed from Latin calor. It was originally defined as the large calorie in the early 19th century, with the small calorie being defined some decades later.

In classic literature

Synonyms

kilogram calorie, kilocalorie, large calorie, nutritionist's calorie

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