Definition of corpuscle noun from the Oxford Advanced Learner's Dictionary

 

corpuscle

 noun
noun
BrE BrE//ˈkɔːpʌsl//
 
; NAmE NAmE//ˈkɔːrpʌsl//
 
(anatomy)
 
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any of the red or white cells found in blood red/white corpuscles Word Origin mid 17th cent.: from Latin corpusculum ‘small body’, diminutive of corpus.
See the Oxford Advanced American Dictionary entry: corpuscle