I. noun 1. a poisonous plant of the buttercup family, bearing hooded pink or purple flowers and found in temperate regions of the northern hemisphere.●Genus Aconitum, family Ranunculaceae: many species, including monkshood and wolfsbane. 2. [ mass noun] — an extract of aconite, used as a poison or in pharmacy. 3. (also winter aconite) — a small herbaceous Eurasian plant, cultivated for its yellow flowers in early spring.●Genus Eranthis, family Ranunculaceae: several species.
– origin mid 16th cent.: via French and Latin from Greek akoniton.