- (n.) The name of several cruciferous plants of the genus Brassica (formerly Sinapis), as white mustard (B. alba), black mustard (B. Nigra), wild mustard or charlock (B. Sinapistrum).
- (n.) A powder or a paste made from the seeds of black or white mustard, used as a condiment and a rubefacient. Taken internally it is stimulant and diuretic, and in large doses is emetic.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). mustard. Retrieved September 24, 2026, from http://smartdefine.org/mustard/definitions/2035430 |
| Chicago | Webster's. 2011. "mustard" http://smartdefine.org/mustard/definitions/2035430 (accessed September 24, 2026). |
| Harvard | Webster's 2011, mustard, Smart Define, viewed 24 September, 2026, <http://smartdefine.org/mustard/definitions/2035430>. |
| MLA | Webster's. "mustard" 27 May 2011. Web. 24 September 2026. <http://smartdefine.org/mustard/definitions/2035430> |