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Rocket :: Rocket (n.) An artificial firework consisting of a cylindrical case of paper or metal filled with a composition of combustible ingredients, as niter, charcoal, and sulphur, and fastened to a guiding stick. The rocket is projected through the air by the force arising from the expansion of the gases liberated by combustion of the composition. Rockets are used as projectiles for various purposes, for signals, and also for pyrotechnic display..

Pyrometry :: Pyrometry (n.) The art of measuring degrees of heat, or the expansion of bodies by heat..

Uvic :: Uvic (a.) Pertaining to, or obtained from, grapes; specifically, designating an organic acid, C7H8O3 (also called pyrotritartaric acid), obtained as a white crystalline substance by the decomposition of tartaric and pyrotartaric acids..

Pyrotic :: Pyrotic (a.) Caustic. See Caustic.

Pyroarsenate :: Pyroarsenate (n.) A salt of pyroarsenic acid.

Pyrolignous :: Pyrolignous (a.) Same as Pyroligneous.

Pyroxenic :: Pyroxenic (a.) Containing pyroxene; composed chiefly of pyroxene.

Pyrophosphoric :: Pyrophosphoric (a.) Pertaining to, or designating, an acid, H4P2O7, which is obtained as a white crystalline substance. Its salts are obtained by heating the phosphates..

Pyrolignic :: Pyrolignic (a.) Pertaining to, or designating, the acid liquid obtained in the distillation of wood, consisting essentially of impure acetic acid..

Pyromalate :: Pyromalate (n.) A salt of pyromalic acid.

Pyrouric :: Pyrouric (a.) Pertaining to, or designating, an acid now called cyanuric acid. See Cyanuric..

Pyrogallate :: Pyrogallate (n.) A salt of pyrogallic acid; an ether of pyrogallol.

Gabbro :: Gabbro (n.) A name originally given by the Italians to a kind of serpentine, later to the rock called euphotide, and now generally used for a coarsely crystalline, igneous rock consisting of lamellar pyroxene (diallage) and labradorite, with sometimes chrysolite (olivine gabbro)..

Dolerite :: Dolerite (n.) A dark-colored, basic, igneous rock, composed essentially of pyroxene and a triclinic feldspar with magnetic iron. By many authors it is considered equivalent to a coarse-grained basalt..

Diabase :: Diabase (n.) A basic, dark-colored, holocrystalline, igneous rock, consisting essentially of a triclinic feldspar and pyroxene with magnetic iron; -- often limited to rocks pretertiary in age. It includes part of what was early called greenstone..

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

Omander Wood :: Omander wood () The wood of Diospyros ebenaster, a kind of ebony found in Ceylon..

Creosol :: Creosol (n.) A colorless liquid resembling phenol or carbolic acid, homologous with pyrocatechin, and obtained from beechwood tar and gum guaiacum..

Pyro- :: Pyro- () Alt. of Pyr.

Xyloidin :: Xyloidin (n.) A substance resembling pyroxylin, obtained by the action of nitric acid on starch; -- called also nitramidin..

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