Source : Webster's Revised Unabridged Dictionary (1913)

Sinalbin \Sin*al"bin\, n. [From L. Sinapis + alba.] (Chem.)
   A glucoside found in the seeds of white mustard ({Brassica
   alba}, formerly {Sinapis alba}), and extracted as a white
   crystalline substance.

White mustard \White mustard\
   A kind of mustard ({Sinapis alba}) with rough-hairy foliage,
   a long-beaked hispid pod, and pale seeds, which yield mustard
   and mustard oil. The plant is also grown for forage.

Source : WordNet®

Sinapis alba
     n : Eurasian mustard cultivated for its pungent seeds; a source
         of table mustard and mustard oil [syn: {white mustard}, {Brassica
         hirta}]