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ms of a higher form. -- Plastic exudation (Med.), an exudation thrown out upon a wounded surface and constituting the material of repair by which the process of healing is effected. -- Plastic foods. (Physiol.) See the second Note under Food. -- Plastic force. (Physiol.) See under Force. -- Plastic operation, an op…

A flat surface; especially, a broad, level, elevated area of land; a table-land.

Any flat or horizontal surface; especially, one that is raised above some particular level, as a framework of timber or boards horizontally joined so as to form a roof, or a raised floor, or portion of a floor; a landing; a dais; a stage, for speakers, performers, or workmen; a standing place.

The smooth serous membrane which closely covers the lungs and the adjacent surfaces of the thorax; the pleural membrane.

pleural and peritoneal membranes, or the membrane lining the body cavity and covering the surface of the inclosed viscera; the peritoneum; -- used especially in the case of those animals in which the body cavity is not divided.

To fall, drop, or move in any way, with a sudden splash or slap, as on the surface of water.

gneous rocks, supposed to have consolidated from a melted state at a great depth from the surface. Cf. Intrusive rocks, under Intrusive. -- Plutonic theory. (Geol.) See Plutonism.

A pustule raised on the surface of the body in variolous and vaccine diseases. Of pokkes and of scab every sore. Chaucer.

ints of (a wall), by introducing additional cement or mortar, and bringing it to a smooth surface.

The act or process of measuring, at the various distances from the surface of a block of marble, the surface of a future piece of statuary; also, a process used in cutting the statue from the artist's model.

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

ly of a heavenly body from the north pole of the heavens. -- Polar equation of a line or surface, an equation which expresses the relation between the polar coördinates of every point of the line or surface. -- Polar forces (Physics), forces that are developed and act in pairs, with opposite tendencies or properties…

om a single tree. -- Pole of a lens (Opt.), the point where the principal axis meets the surface. -- Pole plate (Arch.), a horizontal timber resting on the tiebeams of a roof and receiving the ends of the rafters. It differs from the plate in not resting on the wall.

To become smooth, as from friction; to receive a gloss; to take a smooth and glossy surface; as, steel polishes well. Bacon.

ng wheel, a wheel or disk coated with, or composed of, abrading material, for polishing a surface.

Smooth; polished. [Obs.] Rays of light falling on a polite surface. Sir I. Newton.

Having the surface covered with a fine yellow dust, like pollen.

or based upon, many cones. Polyconic projection (Map Making), a projection of the earth's surface, or any portion thereof, by which each narrow zone is projected upon a conical surface that touches the sphere along this zone, the conical surface being then unrolled. This projection differs from conic projection in that…

ructifications are in uncovered roundish points, called sori, scattered over the inferior surface of the frond or leaf. There are numerous species.

A genus of fungi having the under surface full of minute pores; also, any fungus of this genus.