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Definition of Jerusalem artichoke noun from the Oxford Advanced Learner's Dictionary

Jerusalem artichoke

noun
 
/dʒəˌruːsələm ˈɑːtɪtʃəʊk/
 
/dʒəˌruːsələm ˈɑːrtɪtʃəʊk/
(British English also artichoke)
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  1. a light-brown root vegetable that looks like a potatoTopics Foodc2
    Word Originearly 17th cent.: Jerusalem, alteration of Italian girasole ‘sunflower’.
See Jerusalem artichoke in the Oxford Advanced American Dictionary

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