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The act or process of combining or impregnating with sulphur or its compounds; also, the state of being so combined or impregnated.

Derived from, or containing, sulphur; specifically, designating those compounds in which the element has a higher valence as contrasted with the sulphurous compounds; as, sulphuric acid. Sulphuric acid. (a) Sulphur trioxide (see under Sulphur); -- formerly so called on the dualistic theory of salts. [Obs.] (b) A heavy,…

To combine or impregnate with sulphur or any of its compounds; as, to sulphurize caoutchouc in vulcanizing.

Derived from, or containing, sulphur; specifically, designating those compounds in which the element has a lower valence as contrasted with the sulphuric compounds.

A compound, analogous to a hydrate, regarded as a salt of sulphydric acid, or as a derivative of hydrogen sulphide in which one half of the hydrogen is replaced by a base (as potassium sulphydrate, KSH), or as a hydrate in which the oxygen has been wholly or partially replaced by sulphur.

Any plant of the genus Rhus, shrubs or small trees with usually compound leaves and clusters of small flowers. Some of the species are used in tanning, some in dyeing, and some in medicine. One, the Japanese Rhus vernicifera, yields the celebrated Japan varnish, or lacquer.

A radical, of the aromatic series, regarded as an essential ingredient of certain compounds found in the waxy resin of an Australian species of fig.

Composition, or the putting of two or more things together, as in compounding medicines.

zooids which are imbedded in, or scattered over, the surface of the common tissue of many compound ascidians. Block system, Conservative system, etc. See under Block, Conservative, etc.

of horses harnessed one before the other. "He drove tandems." Thackeray. Tandem engine, a compound steam engine having two or more steam cylinders in the same axis, close to one another. -- Tandem bicycle or tricycle, one for two persons in which one rider sits before the other.

tance, C14H10O9, having an astringent taste, and forming with ferric salts a bluish-black compound, which is the basis of common ink. Called also tannin, and gallotannic acid.

A compound obtained as a yellowish gray powder by the action of acetyl chloride or acetic anhydride or ordinary tannic acid. It is used as an intestinal astringent, and locally in rhinitis and pharyngitis.

cally, designating any one of a series of acids analogous to nitric acid and the polyacid compounds of phosphorus.

so used adjectively) used in chemistry to denote the presence of tartar or of some of its compounds or derivatives.

r is the more stable. It is a special case of metamerism; thus, the lactam and the lactim compounds exhibit tautomerism.

A red crystalline compound related to, or produced from, erythrin. So called because regarded as the end of the series of erythrin compounds.

ing to tellurium; derived from, or resembling, tellurium; specifically, designating those compounds in which the element has a higher valence as contrasted with tellurous compounds; as, telluric acid, which is analogous to sulphuric acid. Telluric bismuth (Min.), tetradymite. -- Telluric silver (Min.), hessite.…

A compound of tellurium with a more positive element or radical; -- formerly called telluret.

ing to tellurium; derived from, or containing, tellurium; specifically, designating those compounds in which the element has a lower valence as contrasted with telluric compounds; as, tellurous acid, which is analogous to sulphurous acid.

The state of any compound substance which results from the mixture of various ingredients; due mixture of different qualities; just combination; as, the temper of mortar.