from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A fatty acid, C22H42O2, making up 40 to 50 percent of the total fatty acid in rapeseed, wallflower seed, and mustard seed.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A long chain unsaturated fatty acid, CH3(CH2)7CH=CH(CH2)11COOH, found in rapeseed and mustard seed oils; the cis- isomer is erucic acid, the trans- isomer is brassidic acid


From New Latin Ērūca, cabbage genus, from Latin ērūca, rocket, cabbage.
(American Heritage® Dictionary of the English Language, Fourth Edition)


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