jerusalem-artichoke

Jerusalem artichoke

noun
1.
Also called girasol. a sunflower, Helianthus tuberosus, having edible, tuberous, underground stems or rootstocks.
2.
Also called sunchoke. the tuber itself.

Origin:
1635–45; alteration of Italian girasole articiocco edible sunflower. See girasol, artichoke

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Jerusalem artichoke
 
n
1.  a North American sunflower, Helianthus tuberosus, widely cultivated for its underground edible tubers
2.  the tuber of this plant, which is cooked and eaten as a vegetable
 
[C17: by folk etymology from Italian girasole articiocco; see girasol]

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