Brassica nigra

Brassica nigra
    n 1: widespread Eurasian annual plant cultivated for its pungent
         seeds; a principal source of table mustard [syn: {black
         mustard}, {Brassica nigra}]
    

Sinigrin \Sin"i*grin\, n. [From NL. Sinapis nigra.] (Chem.)
   A glucoside found in the seeds of black mustard ({Brassica
   nigra}, formerly {Sinapis nigra}) It resembles sinalbin, and
   consists of a potassium salt of myronic acid.
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Mustard \Mus"tard\, n. [OF. moustarde, F. moutarde, fr. L.
   mustum must, -- mustard was prepared for use by being mixed
   with must. See {Must}, n.]
   1. (Bot.) The name of several cruciferous plants of the genus
      {Brassica} (formerly {Sinapis}), as {white mustard}
      ({Brassica alba}), {black mustard} ({Brassica Nigra}),
      {wild mustard} or {charlock} ({Brassica Sinapistrum}).
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   Note: There are also many herbs of the same family which are
         called mustard, and have more or less of the flavor of
         the true mustard; as, bowyer's mustard ({Lepidium
         ruderale}); hedge mustard ({Sisymbrium officinale});
         Mithridate mustard ({Thlaspi arvense}); tower mustard
         ({Arabis perfoliata}); treacle mustard ({Erysimum
         cheiranthoides}).
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   2. 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.
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   {Mustard oil} (Chem.), a substance obtained from mustard, as
      a transparent, volatile and intensely pungent oil. The
      name is also extended to a number of analogous compounds
      produced either naturally or artificially.
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