Meanings
nounblack mustard (plural black mustards)
plural black mustards
- a Mediterranean herb, of species Brassica nigra (syns. Mutarda nigra, Rhamphospermum nigrum etc.), whose seeds are used as a spice.
Synonyms & antonyms
nounwidespread Eurasian annual plant cultivated for its pungent seeds; a principal source of table mustard
Similar
Brassica nigra
Broader
Synonym sets from Open English WordNet, CC BY 4.0.
Cite this entry
APA
black mustard. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/black%20mustard
MLA
“black mustard.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/black%20mustard. Accessed November 4, 2026.
Chicago
WatkinsX Dictionary, s.v. “black mustard,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/black%20mustard.
Source: black mustard on Wiktionary, CC BY-SA 4.0.