Jerusalem artichoke

noun Je·ru·sa·lem artichoke \jə-ˈrü-s(ə-)ləm-, -ˈrüz-ləm-, -ˈrü-zə-\

Definition of Jerusalem artichoke

  1. :  a perennial sunflower (Helianthus tuberosus) of the U.S. and Canada widely cultivated for its tubers that are used as a vegetable and as a livestock feed; also :  its tubers

Origin and Etymology of jerusalem artichoke

Jerusalem by folk etymology from Italian girasole girasole

First Known Use: 1639

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to criticize severely

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