Illustration of mustard
- mustard 2
1
a
: 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
c
slang
: zest
2
: 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
3
: a dark to moderate yellow
Examples of mustard in a Sentence
Would you like some mustard on your hot dog?
Recent Examples on the Web
The namesake Bad Boy Burger ($11.99) is two quarter-pound patties, bacon, American cheese, Swiss cheese, chili, lettuce, tomato, pickles, ketchup and mustard.
—
Michael Deeds, Idaho Statesman, 7 Apr. 2025
The cells that star in the team’s wall-building video were protoplasts of Arabidopsis, a small flowering plant belonging to the same family as cabbage and mustard.
—ArsTechnica, 4 Apr. 2025
Unlike many of its competitors, Sir Kensington’s vegan mayo also includes flavorings like rosemary extract, mustard extract, lemon oil, citric acid, and black pepper—which means the final product has distinct black specks, while most others are an unadulterated eggshell in color.
—Sam Stone, Bon Appetit Magazine, 3 Apr. 2025
Alongside traditional ketchup and mustard, Smash Kitchen will debut with more creative condiments like hot honey ketchup, organic spicy mayo, and hot honey BBQ sauce.
—Jenna Ryu, SELF, 2 Apr. 2025
See All Example Sentences for mustard
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Michael Deeds, Idaho Statesman, 7 Apr. 2025
The cells that star in the team’s wall-building video were protoplasts of Arabidopsis, a small flowering plant belonging to the same family as cabbage and mustard.
—ArsTechnica, 4 Apr. 2025
Unlike many of its competitors, Sir Kensington’s vegan mayo also includes flavorings like rosemary extract, mustard extract, lemon oil, citric acid, and black pepper—which means the final product has distinct black specks, while most others are an unadulterated eggshell in color.
—Sam Stone, Bon Appetit Magazine, 3 Apr. 2025
Alongside traditional ketchup and mustard, Smash Kitchen will debut with more creative condiments like hot honey ketchup, organic spicy mayo, and hot honey BBQ sauce.
—Jenna Ryu, SELF, 2 Apr. 2025
See All Example Sentences for mustard
Cite this Entry
“Mustard.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mustard. Accessed 14 Apr. 2025.
Copy CitationKids Definition
mustard
noun
mus·tard
ˈməs-tərd 
1
: any of several yellow-flowered herbs related to the turnips and cabbages
2
a
: a yellow sharp-tasting condiment consisting of the crushed seeds of various mustard plants either dry or made into a paste or sauce
b
: the seeds of a mustard plant
Medical Definition
mustard
noun
mus·tard
ˈməs-tərd
1
: 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 mustard sense 1, white mustard
3
a
b
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