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A light deck, usually placed in a section of the hold or over the floor of the magazine. See Orlop. Platform car, a railway car without permanent raised sides or covering; a f -- Platform scale, a weighing machine, with a flat platform on which objects are weighed.

A small, hard, elastic plate, as of ivory, bone, or rubber, placed in contact with body to receive the blow, in examination by mediate percussion. [Written also plexometer.]

A strip of canvas, sewn upon a sail so that a batten or a light spar can placed in the interspace.

ral molecules of a monobasic acid; having more than one hydrogen atom capable of being replaced by acid radicals; -- said of certain bases; as, calcium hydrate and glycerin are polyacid bases.

h, several molecules of a monacid base; having several hydrogen atoms capable of being replaced by basic radicals; -- said of certain acids; as, sulphuric acid is polybasic.

The capability of being placed or located. [Obs.] Barrow.

A receptacle in which money given for the poor is placed.

The state of being posited, or placed; the manner in which anything is placed; attitude; condition; as, a firm, an inclined, or an upright position. We have different prospects of the same thing, according to our different positions to it. Locke.

The place at which anything is stopped, placed, or fixed; a station. Specifically:

The act of placing after, or the state of being placed after. "The postposition of the nominative case to the verb." Mede.

Placed after another word; as, a postpositive conjunction; a postpositive letter. -- Post*pos"i*tive*ly, adv.

ssel in which meat is corned or salted. (b) A heated tub in which an infected lecher was placed for cure. [Obs.] Shak.

An anterior molar tooth which has replaced a deciduous molar. See Tooth.

Placed just in front of the eyes, as the antennæ of certain insects. -- n.

, contrived, or planned beforehand; preconceived; premeditated; aforethought; -- usually placed after the word it qualifies; as, malice prepense. This has not arisen from any misrepresentation or error prepense. Southey.

objective case) to make a phrase limiting some other word; -- so called because usually placed before the word with which it is phrased; as, a bridge of iron; he comes from town; it is good for food; he escaped by running.

he amido group, or a derivative of ammonia in which only one atom of hydrogen has been replaced by a basic radical; -- distinguished from secondary and tertiary amines. -- Primary amputation (Surg.), an amputation for injury performed as soon as the shock due to the injury has passed away, and before symptoms of infla…

ersive power being compensated by giving them different refracting angles, so that, when placed together so as to have opposite relative positions, a ray of light passed through them is refracted or bent into a new position, but is free from color. -- Nicol's prism, Nicol prism. Etym: [So called from Wm. Nicol, of Edi…

and officers of state as to state secrets; also, by statute, clergymen and physicans are placed in the same category, so far as concerns information received by them professionally.

A contrivance for propelling a steam vessel, usually consisting of a screw placed in the stern under water, and made to revolve by an engine; a propeller wheel.