: a pungent yellow condiment consisting of the pulverized seeds of various mustard plants (such as Sinapis alba, Brassica juncea, and B. nigra) either dry or made into a paste or sauce (as by mixing with water or vinegar) and sometimes adulterated with other substances (such as turmeric) or mixed with spices
b
: the seed of a mustard plant used as a spice and in medicine as a stimulant and diuretic, an emetic, or a counterirritant
: any of several herbs (genera Brassica and Sinapis of the family Brassicaceae synonym Cruciferae, the mustard family) with lobed leaves, yellow flowers, and linear beaked pods
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Add apple cider and mustard; cook, stirring constantly, until thickened, 1 to 2 minutes.—Melinda Salchert, Southern Living, 29 Sep. 2025 Blend the yolks with olive oil, lemon juice, garlic, anchovy, and Dijon mustard for a creamy drizzle that's great on salads, sandwiches, and more.—Sarah Martens, Better Homes & Gardens, 27 Sep. 2025 In addition to an array of handhelds, expect plenty of elevated pub fare, including cheese curds and wings, poutine, and giant pretzels served with cheese and honey mustard.—Lauren Dana Ellman, Travel + Leisure, 27 Sep. 2025 An Oktoberfest board includes a sausage, two soft pretzels, cheese sauce, German mustard, sauerkraut and radi, or German radish that is typically consumed with beer.—Marcus Smith, Sacbee.com, 26 Sep. 2025 See All Example Sentences for mustard
Word History
Etymology
Middle English, from Anglo-French mustarde, from must must, from Latin mustum
: a pungent yellow condiment consisting of the pulverized seeds of the black mustard or sometimes the white mustard either dry or made into a paste and serving as a stimulant and diuretic or in large doses as an emetic and as a counterirritant when applied to the skin as a poultice
2
: any of several herbs (genus Brassica of the family Cruciferae, the mustard family) with lobed leaves, yellow flowers, and linear beaked pods see black mustardsense 1, white mustard
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