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ms; firing; as, the troops were exposed to a heavy fire. Blue fire, Red fire, Green fire (Pyrotech.), compositions of various combustible substances, as sulphur, niter, lampblack, etc., the flames of which are colored by various metallic salts, as those of antimony, strontium, barium, etc. -- Fire alarm (a) A signal g…

A very brilliantly luminous beetle (Pyrophorus noctilucus), one of the elaters, found in Central and South America; -- called also cucujo. The name is also applied to other species. See Firefly.

A pyrotechnic exhibition. [Obs. in the sing.] Night before last, the Duke of Richmond gave a firework. Walpole.

bstance, C4H4O, obtained by distilling certain organic substances, as pine wood, salts of pyromucic acid, etc.; -- called also tetraphenol.

e, and now generally used for a coarsely crystalline, igneous rock consisting of lamellar pyroxene (diallage) and labradorite, with sometimes chrysolite (olivine gabbro).

A red crystalline dyestuff, obtained by heating together pyrogallic and phthalic acids.

. Glutaric acid, an organic acid obtained as a white crystalline substance, isomeric with pyrotartaric acid; -- called also normal pyrotartaric acid.

from a grain crop, root crop, etc. -- Green diallage. (Min.) (a) Diallage, a variety of pyroxene. (b) Smaragdite. -- Green dragon (Bot.), a North American herbaceous plant (Arisæma Dracontium), resembling the Indian turnip; -- called also dragon root. -- Green earth (Min.), a variety of glauconite, found in cavitie…

A bright-colored South African grosbeak (Pyromelana orix), having the back red and the lower parts black.

A colorless liquid, C7H8O2, with a peculiar odor. It is the methyl ether of pyrocatechin, and is obtained by distilling guaiacum from wood-tar creosote, and in other ways. It has been used in treating pulmonary tuberculosis.

ained by the reduction of quinone. It is a diacid phenol, resembling, and metameric with, pyrocatechin and resorcin. Called also dihydroxy benzene.

An orthorhombic mineral of the pyroxene group, of a grayish or greenish black color, often with a peculiar bronzelike luster (schiller) on the cleavage surface.

ay among Indians of traversing woods, especially when on the war path. -- Indian fire, a pyrotechnic composition of sulphur, niter, and realgar, burning with a brilliant white light. -- Indian grass (Bot.), a coarse, high grass (Chrysopogon nutans), common in the southern portions of the United States; wood grass. Gr…

A variety of pyroxene of olive-green color passing into brown. It contains zinc.

An igneous rock consisting largely of chrysolite, with pyroxene and picotite (a variety of spinel containing chromium).

us plants much resembling clover. [Written also lotos.] European lotus, a small tree (Diospyros Lotus) of Southern Europe and Asia; also, its rather large bluish black berry, which is called also the date plum.

A kind of persimmon tree (Diospyros discolor) from the Philippine Islands, now introduced into the East and West Indies. It bears an edible fruit as large as a quince.

uction of a blinding light (the so-called magnesium light) which is used in signaling, in pyrotechny, or in photography where a strong actinic illuminant is required. Its compounds occur abundantly, as in dolomite, talc, meerschaum, etc. Symbol Mg. Atomic weight, 24.4. Specific gravity, 1.75. Magnesium sulphate. (Chem.…

A variety of pyroxene.

with difficulty, but easily oxidized. Its ores occur abundantly in nature as the minerals pyrolusite, manganite, etc. Symbol Mn. Atomic weight 54.8.