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

 

patella

 noun
noun
BrE BrE//pəˈtelə//
 
; NAmE NAmE//pəˈtelə//
 
(pl. patellae
BrE BrE//pəˈteliː//
 
; NAmE NAmE//pəˈteliː//
 
)
(anatomy) Skeleton and muscles
 
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the kneecap See related entries: Skeleton and muscles Word Origin late 16th cent.: from Latin, diminutive of patina ‘shallow dish’, from Greek patanē ‘a plate’.
See the Oxford Advanced American Dictionary entry: patella