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

 

vegetarian

 noun
noun
BrE BrE//ˌvedʒəˈteəriən//
 
; NAmE NAmE//ˌvedʒəˈteriən//
 
(informal veggie) Diet
 
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a person who does not eat meat or fish Is she a vegetarian? They are strict vegetarians. compare fruitarian, herbivore See related entries: Diet Word Origin mid 19th cent.: formed irregularly from vegetable + -arian.