an extremely poisonous alkaloid, CHNO, found in certain mushrooms, rotten fish, etc., that will seriously disrupt the neuromuscular system if consumed
See muscarine in American Heritage Dictionary 4
(mŭsˈkə-rēnˌ)
noun
A highly toxic alkaloid, C9H20NO2, related to the cholines, derived from the red form of the mushroom Amanita muscaria and found in decaying animal tissue.