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mpressing a gas will ignite substances. -- Pneumatic trough, a trough, generally made of wood or sheet metal, having a perforated shelf, and used, when filled with water or mercury, for collecting gases in chemical operations. -- Pneumatic tube. See Pneumatic dispatch, above.

Low, wooded grounds or swamps in Eastern Maryland and Virginia. [Written also poquoson.] Washington.

original weapon consisting of a stone or piece of antler fastened to the end of a slender wooden handle, used by American Indians from the Great Plains to the Mackenzie River.

cture, a picture formed in imitation of bisterwashed drawings, by singeing the surface of wood with a heated poker or other iron. Fairholt.

A long, slender piece of wood; a tall, slender piece of timber; the stem of a small tree whose branches have been removed; as, specifically: (a) A carriage pole, a wooden bar extending from the front axle of a carriage between the wheel horses, by which the carriage is guided and held back. (b) A flag pole, a pole on w…

(Glass Making) A tool consisting of a flat wooden block with a long iron handle, used for flattening out split cylinders of blown glass.

ved block, matter in type, etc. (see citation); as, a polytype in relief. By pressing the wood cut into semifluid metal, an intaglio matrix is produced: and from this matrix, in a similar way, a polytype in relief is obtained. Hansard.

A wooden flat-bottomed boat, a metallic cylinder, or a frame covered with canvas, India rubber, etc., forming a portable float, used in building bridges quickly for the passage of troops.

rged with common liabilities. Pin pool, a variety of the game of billiards in which small wooden pins are set up to be knocked down by the balls. -- Pool ball, one of the colored ivory balls used in playing the game at billiards called pool. -- Pool snipe (Zoöl.), the European redshank. [Prov. Eng.] -- Pool table, a…

A name for several East Indian, or their wood, used for the masts and spars of vessels, as Calophyllum angustifolium, C. inophullum, and Sterculia foetida; -- called also peon.

The green woodpecker.

of sheep. It is found from Illinois westward. See Illustration in Appendix. -- Porcupine wood (Bot.), the hard outer wood of the cocoa palm; -- so called because, when cut horizontally, the markings of the wood resemble the quills of a porcupine.

The coarse-grained brownish yellow wood of a small tree (Pisonia obtusata) of Florida and the West Indies. Also called pigeon wood, beefwood, and corkwood.

having spiracles or passages for fluids; permeable by liquids; as, a porous skin; porous wood. "The veins of porous earth." Milton.

The impure potassium carbonate obtained by leaching wood ashes, either as a strong solution (lye), or as a white crystalline (pearlash).

A pot companion. [Obs.] Life of A. Wood (1663).

xercise or discipline for a specific purpose or object. "The praxis and theory of music." Wood.

The hurry, precipitation, and rapid motion of the water, returning . . . towards the sea. Woodward.

One who, or that which, prepares, fits, or makes ready. Wood.

ause I thus treat last of the antediluvian earth, which was first in the order of nature. Woodward.