Definify.com
Webster 1913 Edition
Sinapine
Sin′a-pine
,Noun.
[L.
sinapi
, sinapis
, mustard, Gr. [GREEK][GREEK][GREEK]: cf. F. sinapine
.] (Chem.)
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.