'Monkshood' definitions:

Definition of 'monkshood'

(from WordNet)
noun
A poisonous herb native to northern Europe having hooded blue-purple flowers; the dried leaves and roots yield aconite [syn: monkshood, helmetflower, helmet flower, Aconitum napellus]

Definition of 'Monkshood'

From: GCIDE
  • Monkshood \Monks"hood`\, n. (Bot.) A plant of the genus Aconitum; aconite. See Aconite. [1913 Webster]