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sinigrin

[sin-i-grin]
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noun Chemistry.
  1. a colorless, crystalline, water-soluble solid, KC10H16NO9S2⋅H2O, found chiefly in the seeds of the black mustard, that deters some insect predators.

Origin of sinigrin

1875–80; < New Latin Sin(apis n)igr(a) species yielding black mustard seed (literally, black mustard; see sinapine, Negro) + -in2
Also called potassium myronate.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018