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Formerly, designating an acid, which is now properly called pyroantimonic acid, and analogous to pyrophosphoric acid.

an acid known only in its salts (the metatungstates) and properly called polytungstic, or pyrotungstic, acid.

A variety of pyroxene, from the Mussa Alp in Piedmont; diopside.

The wood of Diospyros ebenaster, a kind of ebony found in Ceylon.

A greenish spotted porphyry, being a diabase whose pyroxene has been altered to uralite; -- first found in the Pyreness. So called from the colored spots which give it a mottled appearance. -- O*phi"ic, a.

ning to, or designating, the phenol formerly called oxyphenic acid, and now oxyphenol and pyrocatechin. See Pyrocatechin.

A phenol, oxyphenic acid, and now pyrocatechin.

Pyrophosphoric. [Obs.]

tive rock characterized by the presence of chrysolite (peridot). It also usually contains pyroxene, enstatite, chromite, etc. It is often altered to serpentine.

An American tree (Diospyros Virginiana) and its fruit, found from New York southward. The fruit is like a plum in appearance, but is very harsh and astringent until it has been exposed to frost, when it becomes palatable and nutritious. Japanese persimmon, Diospyros Kaki and its red or yellow edible fruit, which outwar…

A sweet white crystalline substance, metameric with pyrogallol, and obtained by the decomposition of phloretin, and from certain gums, as catechu, kino, etc. It belongs to the class of phenols. [Called also phloroglucinol.]

ted from the creosote of beechwood tar. It consists essentially of certain derivatives of pyrogallol.

st Indies for the wood of several very different kinds of trees, species of Dipholis, Diospyros, and Coccoloba. -- Pigeon woodpecker (Zoöl.), the flicker. -- Prairie pigeon. (Zoöl.) (a) The upland plover. (b) The golden plover. [Local, U.S.]

ubstance from catechin, asafetida, oil of cloves, etc., and by distillation itself yields pyrocatechin.

A variety of pyroxene; -- called also fassaite.

Same as Pyroüric.

Pertaining to, or designating, an acid (called also pyroracemic acid) obtained, as a liquid having a pungent odor, by the distillation of racemic acid.

A soft, compact variety of talc,, being an altered pyroxene. It is often worked in a lathe into inkstands and other articles.

position. Rockets are used as projectiles for various purposes, for signals, and also for pyrotechnic display.

A massive lamellar variety of pyroxene, of a dingy green color. [Written also sahlite.]