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A phenol metameric with phloroglucin, obtained by the distillation of gallic acid as a poisonous white crystalline substance having acid properties, and hence called also pyrogallic acid. It is a strong reducer, and is used as a developer in photography and in the production of certain dyes.

A poison separable from decomposed meat infusions, and supposed to be formed from albuminous matter through the agency of bacteria.

Producing heat; -- said of substances, as septic poisons, which elevate the temperature of the body and cause fever.

Rat poison; white arsenic.

Poisoned by ratsbane.

Censure; reproach cast. He died; and oh! may no reflection shed Its poisonous venom on the royal dead. Prior.

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 amorphus powder, which occasions a soapy lather in solution, and produces a local anæstesia. Formerly called also struthiin, quilaiin, senegin, polygalic acid, etc. By…

a West African leguminous tree (Erythrophlæum Guineense, used by the natives as an ordeal poison, and also medicinally; -- called also mancona bark.

rth, yield me roots; Who seeks for better of thee, sauce his palate With thy most operant poison! Shak.

A soluble poison (ptomaine) present in putrid blood. It is also formed in the putrefaction of proteid matter in general.

The poisoning of the system by the introduction of putrescent material into the blood.

A poisoned condition of the blood produced by the absorption into it of septic or putrescent material; blood poisoning. It is marked by chills, fever, prostration, and inflammation of the different serous membranes and of the lungs, kidneys, and other organs.

Conveying putrid poison; as, the virulence of septiferous matter.

hem.), mercuric sulphocyanate, a combustible white substance which in burning gives off a poisonous vapor and leaves a peculiar brown voluminous residue which is expelled in a serpentine from. It is employed as a scientific toy. -- Serpent cucumber (Bot.), the long, slender, serpentine fruit of the cucurbitaceous plan…

raveolens) native of the seacoats of Europe and Asia. When deprived of its acrid and even poisonous properties by cultivation, it becomes celery.

A poisonous alkaloid glucoside extracted from the berries of common nightshade (Solanum nigrum), and of bittersweet, and from potato sprouts, as a white crystalline substance having an acrid, burning taste; -- called also solonia, and solanina.

ecial tissue. (b) A disease which is itself uniformly produced by a definite and peculiar poison or organism. -- Specific duty. (Com.) See under Duty. -- Specific gravity. (Physics) See under Gravity. -- Specific heat (Physics), the quantity of heat required to raise temperature of a body one degree, taking as the u…

o spice one's words with wit. She 'll receive thee, but will spice thy bread With flowery poisons. Chapman.

ies of arachnids comprising the order Araneina. Spiders have the mandibles converted into poison fangs, or falcers. The abdomen is large and not segmented, with two or three pairs of spinnerets near the end, by means of which they spin threads of silk to form cocoons, or nests, to protect their eggs and young. Many spe…

Poison spittle; poison ejected from the mouth. [R.] Hooker.