Definition of artichoke noun from the Oxford Advanced American Dictionary

 

artichoke

 noun
noun
NAmE//ˈɑrt̮əˌtʃoʊk//
 
(also globe artichoke)[countable, uncountable]
 
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a round vegetable with a lot of thick green leaves. The bottom part of the leaves and the inside of the artichoke (= the heart) can be eaten when cooked. compare Jerusalem artichoke
See the Oxford Advanced Learner's Dictionary entry: artichoke