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from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A weedy, annual Eurasian plant (Brassica nigra) in the mustard family, having racemes of yellow flowers and pungent seeds formerly used to prepare the condiment mustard.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. widespread Eurasian annual plant cultivated for its pungent seeds; a principal source of table mustard


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