noun🔗ShareKilocalorieA non-SI unit of energy equal to 1,000 calories, used (now rare) in chemistry or physics; equal to 1 calorie or Calorie as used in nutrition. Symbol kcal."The nutrition label on the bread stated it contained 100 kilocalories per slice. "L'étiquette nutritionnelle sur le pain indiquait qu'il contenait 100 kilocalories par tranche.energyphysicschemistryfoodphysiologybiochemistryunitscienceChat with AIVocabulary GamePractice Reading