mustard Definition

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

the seed of a mustard plant used as a spice and in medicine as a stimulant and diuretic, an emetic, or a counterirritant

zest

an irritant vesicant oily liquid C4H8Cl2S used especially as a chemical weapon

a counterirritant and rubefacient plaster containing powdered mustard

a prepared mustard made from dark mustard seeds, white wine, and spices

any of various toxic blistering compounds analogous to mustard gas but containing nitrogen instead of sulfur

a Eurasian mustard (Sinapis alba synonym Brassica hirta) grown for its pale yellow seeds which yield mustard and mustard oil

charlock

very excited and interested : very enthusiastic

an Old World mustard (Brassica kaber synonym Sinapis arvensis) that is a common weed in grain fields —called also wild mustard

to penetrate with or as if with an edged instrument

to hurt the feelings of

to strike sharply with a cutting effect