Definitions
1.nounA plant of certain species of the genus Brassica, or of related genera (especially Sinapis alba, in the family Brassicaceae, with yellow flowers, and linear seed pods).
2.nounPowder or paste made from seeds of the mustard plant, and used as a condiment or a spice."When the waitress brought the food, I asked whether she had any Dijon mustard."
3.nounThe leaves of the mustard plant, used as a salad."Mustard and cress sandwiches."
4.nounDark yellow colour, the colour of mustard.
5.nounThe tomalley of a crab, which resembles the condiment.