Definition of betel nut noun from the Oxford Advanced Learner's Dictionary

 

betel nut

 noun
noun
BrE
 
; NAmE
 
 
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the slightly bitter nut of a tropical Asian palm, that is cut into small pieces, wrapped in betel leaves, and chewed Word OriginPortuguese betel from Malayalam ver̲r̲ila
See the Oxford Advanced American Dictionary entry: betel nut