Also found in: Medical, Wikipedia.


n.1.(Chem.) The active principle of the water hemlock (Cicuta) extracted as a poisonous gummy substance.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
(8) The water hemlock shrub contains the neurotoxin, cicutoxin, and prefers low-lying, freshwater shoreline and marshy environments.
Effect on Plant Compound Plant part livestock Cocklebur Hydroquinone Seeds and Nausea, poor herbage gain Lambsquarters Nitrates Herbage Respiratory failure, death Halogeton Oxalates Herbage Kidney failure Horary Unknown Herbage Fever, founder alyssum in horses Nightshade Alkaloid Herbage and Diarrhea green berries Poison ivy Urushiol Herbage and Dermatitis roots Water Cicutoxin Roots and Death hemlock herbage White snake Retinol Herbage Kidney failure root Table 14-7 Examples of human poisonings through ingestion or inhalation of toxins from weeds.
The hollow stems contain a yellow sap, which has the deadly cicutoxin in it.
In October 1993, postmortem samples of frozen liver tissue, blood, and gastric contents from the man were analyzed by high-pressure liquid chromatography for cicutoxin, a poisonous substance in water hemlock.