any plant belonging to the genus Aconitum, of the buttercup family, having irregular flowers usually in loose clusters, including species with poisonous and medicinal properties.
Main Entry: ac·o·nite Pronunciation: 'ak-&-"nIt Function: noun 1:MONKSHOOD 2: the dried tuberous root of a monkshood (Aconitum napellus) formerly used as a cardiac and respiratory sedative
Main Entry: Ac·o·ni·tum Pronunciation: "ak-&-'nIt-&m Function: noun : a genus of poisonous herbs (family Ranunculaceae) found intemperate regions and having palmately divided leaves and very irregular blue, purple, or yellow flowers —see MONKSHOOD,WOLFSBANE
aconite ac·o·nite (āk'ə-nīt') n. The dried poisonous root of various herbs of the genus Aconitum containing aconitine, used externally as an analgesic.