Jerusalem artichoke
noun
Je·ru·sa·lem artichoke
| \ jə-ˈrü-s(ə-)ləm-
, -ˈrüz-ləm-, -ˈrü-zə-\
, -ˈrüz-ləm-, -ˈrü-zə-\
Definition of Jerusalem artichoke
: 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
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