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Of or pertaining to poison; poisonous; as, toxic medicines.

A poisonous agent or drug, as opium; an intoxicant.

Poisoning.

The quality or state of being toxic or poisonous; poisonousness.

One versed in toxicology; the writer of a treatise on poisons.

The science which treats of poisons, their effects, antidotes, and recignition; also, a discourse or treatise on the science.

An insane desire for intoxicating or poisonous drugs, as alcohol or opium. B. W. Richardson.

A poisonous product formed by pathogenic bacteria, as a toxic proteid or poisonous ptomaine.

An insane or greatly exaggerated dread of poisons.

A division of marine gastropod mollusks in which the radula are converted into poison fangs. The cone shells (Conus), Pleurotoma, and Terebra, are examples. See Illust. of Cone, n., 4, Pleurotoma, and Terebra.

A remedy against poison. See Theriac, 1. We kill the viper, and make treacle of him. Jer. Taylor.

dfastness; faithfulness. Alas! they had been friends in youth, But whispering tongues can poison truth. Coleridge.

A venomous two-winged African fly (Glossina morsitans) whose bite is very poisonous, and even fatal, to horses and cattle, but harmless to men. It renders extensive districts in which it abounds uninhabitable during certain seasons of the year. [Written also tzetze, and tsetze.]

boy; unruly conduct. But the tongue can no man tame; it is an unruly evil, full of deadly poison. James iii. 8.

uit family, common in the forests of Java and the neighboring islands. Its secretions are poisonous, and it has been fabulously reported that the atmosphere about it is deleterious. Called also bohun upas.

A poisonous glucoside found accompanying urechitin, and extracted as a bitter white crystalline substance.

The act or practice of poisoning. [Obs.]

Acting by poison; used in poisoning or in sorcery. [Obs.] "An old veneficious practice." Sir T. Browne. -- Ven`e*fi"cious*ly, adv. [Obs.]

To poison; to infect with poison. [R.] Harvey.

The act of poisoning.