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English definition of “capsule”

capsule

noun [C] (IN THE BODY)    /ˈkæp.sjuːl/ US  /-səl/
specialized medical a flexible (= not stiff or fixed) structure surrounding an organ, joint, or other structureSubstances and structures in the body
(Definition of capsule noun (IN THE BODY) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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