noun
leaves eaten as cooked greens
• Syn: ↑mustard, ↑mustard greens, ↑leaf mustard
• Hypernyms: ↑cruciferous vegetable
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nounUsage: usually capitalized I
: an Asiatic mustard (Brassica juncea) that has pods growing at an angle with their stems and that is used as a potherb and is widely naturalized as a weed — called also leaf mustard
Useful english dictionary. 2012.