A poisonous alkaloid obtained from monkshood and related plants.
'In 1881 Dr George Henry Lamson poisoned his two brothers-in-law for their legacies, at least one with aconitine, the only recorded case of its use to kill.'
'These herbs contain highly toxic alkaloids, including aconitine, which activate sodium channels and over-stimulate cell membranes.'
((n.) An intensely poisonous alkaloid, extracted from aconite.)
