What does aconitine mean?
Aconitine is a highly poisonous alkaloid found in plants of the genus Aconitum, commonly known as monkshood or wolfsbane. It is one of the most lethal naturally occurring plant toxins known: it binds to voltage-gated sodium channels in nerve and muscle cells, holding them open and disrupting normal electrical signalling, which can lead to numbness, vomiting, irregular heartbeat, respiratory paralysis, and death. Even small doses absorbed through the skin or swallowed can be fatal, and there is no specific antidote. Historically, aconitine was used both as a weapon — coating arrow tips in ancient hunting and warfare — and, in carefully controlled minuscule amounts, in traditional medicine for pain relief. Today the word appears chiefly in toxicology reports, forensic investigations, pharmacological research, and cautionary accounts of accidental poisoning from misidentified or improperly prepared herbal remedies, giving it an unmistakably grave and technical connotation.
nounAn extremely poisonous crystalline alkaloid obtained from plants of the genus Aconitum (monkshood or wolfsbane), acting as a potent neurotoxin and cardiotoxin that keeps sodium channels open.
- The principal toxic alkaloid of Aconitum species (wolfsbane, monkshood), used historically in medicine in tiny doses and notorious as a poison.
"The forensic analysis of the herbal remedy revealed a lethal dose of aconitine."
"The coroner identified aconitine as the cause of death after the victim drank an unlabelled herbal decoction."
"In traditional Chinese medicine, processed aconite roots are carefully prepared to reduce their aconitine content before use."
Rarely pluralised; the plural appears only when referring collectively to related aconitine-type alkaloids in technical chemistry literature.
"The extract contained several aconitines alongside the parent compound."
Aconitine is so deadly that ancient hunters tipped their arrows with it — and even handling the plant that produces it can poison you through the skin.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of aconitine
The word aconitine derives from aconite, the name of the poisonous plant genus, which traces back through Latin aconitum to the Greek akoniton, the classical name for wolfsbane. The suffix -ine marks it as an alkaloid, following the nineteenth-century chemical convention of naming such plant-derived compounds. The ultimate Greek root may relate to akon, a dart or javelin, alluding to the plant's use on poisoned arrows, though this connection is traditional rather than certain.
How aconitine is actually used
Strictly scientific and technical in register; encountered mainly in toxicology, pharmacology, forensic science, and historical accounts of poisoning. It carries strongly negative connotations of lethality and danger.
Easily confused with aconitine
Aconite is the plant itself (monkshood or wolfsbane), while aconitine is the specific toxic alkaloid extracted from it.