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

 

watercress

 noun
noun
BrE BrE//ˈwɔːtəkres//
 
; NAmE NAmE//ˈwɔːtərkres//
 
, NAmE//ˈwɑːtərkres//
 
[uncountable]
 
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a water plant with small round green leaves and thin stems. It has a strong taste and is often eaten raw in salads.
See the Oxford Advanced American Dictionary entry: watercress