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

 

ovum

 noun
noun
BrE BrE//ˈəʊvəm//
 
; NAmE NAmE//ˈoʊvəm//
 
(pl. ova
BrE BrE//ˈəʊvə//
 
; NAmE NAmE//ˈoʊvə//
 
)
(biology) Cell biology, Pregnancy
 
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a female cell of an animal or a plant that can develop into a young animal or plant when fertilized See related entries: Cell biology, Pregnancy Word Origin early 18th cent.: from Latin, literally ‘egg’.
See the Oxford Advanced American Dictionary entry: ovum