from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An alkaloidal amine found in black mustard seeds, considered a choline ester of sinapic acid.
from the GNU version of the Collaborative International Dictionary of English
- n. An alkaloid occuring in the seeds of mustard. It is extracted, in combination with sulphocyanic acid, as a white crystalline substance, having a hot, bitter taste. When sinapine is isolated it is unstable and undergoes decomposition.
from The Century Dictionary and Cyclopedia
- n. An organic base, C16H23NO5, existing as a sulphocyanate in white mustardseed. The free base is quite unstable, and has not been obtained.
Latin sinapi, sinapis, mustard, Ancient Greek: compare French sinapine. (Wiktionary)