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Water Dropwort :: Water dropwort () A European poisonous umbelliferous plant (Enanthe fistulosa) with large hollow stems and finely divided leaves.

Virus :: Virus (v. i.) Contagious or poisonous matter, as of specific ulcers, the bite of snakes, etc.; -- applied to organic poisons..

Mydatoxin :: Mydatoxin (n.) A poisonous amido acid, C6H13NO2, separated by Brieger from decaying horseflesh. In physiological action, it is similar to curare..

Strychnos :: Strychnine (n.) A very poisonous alkaloid resembling brucine, obtained from various species of plants, especially from species of Loganiaceae, as from the seeds of the St. Ignatius bean (Strychnos Ignatia) and from nux vomica. It is obtained as a white crystalline substance, having a very bitter acrid taste, and is employed in medicine (chiefly in the form of the sulphate) as a powerful neurotic stimulant. Called also strychnia, and formerly strychnina..

Hellebore :: Hellebore (n.) A genus of perennial herbs (Helleborus) of the Crowfoot family, mostly having powerfully cathartic and even poisonous qualities. H. niger is the European black hellebore, or Christmas rose, blossoming in winter or earliest spring. H. officinalis was the officinal hellebore of the ancients..

Virulent :: Virulent (a.) Extremely poisonous or venomous; very active in doing injury.

Jamestown Weed :: "Jamestown weed () The poisonous thorn apple or stramonium (Datura stramonium), a rank weed early noticed at Jamestown, Virginia. See Datura..

Flybane :: Flybane (n.) A kind of catchfly of the genus Silene; also, a poisonous mushroom (Agaricus muscarius); fly agaric..

Neurine :: Neurine (n.) A poisonous organic base (a ptomaine) formed in the decomposition of protagon with boiling baryta water, and in the putrefraction of proteid matter. It was for a long time considered identical with choline, a crystalline body originally obtained from bile. Chemically, however, choline is oxyethyl-trimethyl-ammonium hydroxide, while neurine is vinyl-trimethyl-ammonium hydroxide..

Tetanin :: Tetanin (n.) A poisonous base (ptomaine) formed in meat broth through the agency of a peculiar microbe from the wound of a person who has died of tetanus; -- so called because it produces tetanus as one of its prominent effects.

Saponin :: Saponin (n.) A poisonous glucoside found in many plants, as in the root of soapwort (Saponaria), in the bark of soap bark (Quillaia), etc. It is extracted as a white amorphous powder, which occasions a soapy lather in solution, and produces a local anaesthesia. Formerly called also struthiin, quillaiin, senegin, polygalic acid, etc. By extension, any one of a group of related bodies of which saponin proper is the type..

Delphinine :: Delphinine (n.) A poisonous alkaloid extracted from the stavesacre (Delphinium staphisagria), as a colorless amorphous powder..

Sulphocyanide :: Sulphocyanic (a.) Of, pertaining to, derived from, or designating, a sulphacid, HSCN, analogous to cyanic acid, and obtained as a colorless deliquescent crystalline substance, having a bitter saline taste, and not poisonous..

Amanitine :: Amanitine (n.) The poisonous principle of some fungi.

Lobeline :: Lobeline (n.) A poisonous narcotic alkaloid extracted from the leaves of Indian tobacco (Lobelia inflata) as a yellow oil, having a tobaccolike taste and odor..

Moccasin :: Moccasin (n.) A poisonous snake of the Southern United States. The water moccasin (Ancistrodon piscivorus) is usually found in or near water. Above, it is olive brown, barred with black; beneath, it is brownish yellow, mottled with darker. The upland moccasin is Ancistrodon atrofuscus. They resemble rattlesnakes, but are without rattles..

Crotalus :: Crotalus (n.) A genus of poisonous serpents, including the rattlesnakes..

Tarantella :: Tarantella (n.) A rapid and delirious sort of Neapolitan dance in 6-8 time, which moves in whirling triplets; -- so called from a popular notion of its being a remedy against the poisonous bite of the tarantula. Some derive its name from Taranto in Apulia..

Toxicomania :: Toxicomania (n.) An insane desire for intoxicating or poisonous drugs, as alcohol or opium..

Aconitine :: Aconitine (n.) An intensely poisonous alkaloid, extracted from aconite..

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