black mustard


: a yellow-flowered annual Eurasian herb (Brassica nigra) that is a source of table mustard
: the dried ripe seed of black mustard or a relative (Brassica juncea) that was formerly much used in medicine as a rubefacient and emetic

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Cite this Entry

“Black mustard.” Medical Dictionary, Merriam-Webster, Accessed 21 May. 2024.

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