Part 345

Pleu"ro*dont, n. (Zoˆl.) Any lizard having pleurodont teeth.

||Pleu`ro*dyn"i*a (?), n. [NL., fr. Gr. &?; side + &?; pain.] (Med.) A ||painful affection of the side, simulating pleurisy, usually due to ||rheumatism.

||Pleu"ron (?), n.; pl. Pleura (#). [NL., fr. Gr. &?; a rib.] (Zoˆl.) ||(a) One of the sides of an animal. (b) One of the lateral pieces of a ||somite of an insect. (c) One of lateral processes of a somite of a ||crustacean.

Pleu`ro*nec"toid (?), a. [NL. Pleuronectes, name of a genus (fr. Gr. &?; rib + &?; a swimmer) + -oid.] (Zoˆl.) Pertaining to the PleuronectidÊ, or Flounder family.

Pleu`ro*per`i*car"di*al (?), a. (Anat.) Of or pertaining to the pleura and pericardium.

Pleu`ro*per`ip*neu"mo*ny (?), n. [Pleuro- + peripneumony.] (Med.) Pleuropneumonia.

Pleu`ro*per`i*to*ne"al (?), a. (Anat.) Of or pertaining to the pleural and peritoneal membranes or cavities, or to the pleuroperitoneum.

Pleu`ro*per`i*to*ne"um (?), n. [Pleuro- + peritoneum.] (Anat.) The 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.

Peritoneum is now often used in the sense of pleuroperitoneum, the pleurÊ being regarded as a part of the peritoneum, when the body cavity is undivided.

Pleu`ro*pneu*mo"ni*a (?), n. [Pleuro- + pneumonia.] (Med.) Inflammation of the pleura and lungs; a combination of pleurisy and pneumonia, esp. a kind of contagions and fatal lung plague of cattle.

||Pleu*rop"te*ra (?), n. pl [NL., fr. Gr. &?; side + &?; wing.] (Zoˆl.) ||A group of Isectivora, including the colugo.

||Pleu`ro*sig"ma (?), n. [NL. See Pleuro-, and Sigma.] (Bot.) A genus ||of diatoms of elongated elliptical shape, but having the sides ||slightly curved in the form of a letter S. Pleurosigma angulatum has ||very fine striations, and is a favorite object for testing the high ||powers of microscopes.

||Pleu*ros"te*on (?), n.; pl. L. Pleurostea (#), E. -ons (#). [NL., fr. ||Gr. &?; a rib + &?; a bone.] (Anat.) The antero- lateral piece which ||articulates the sternum of birds.

||Pleu`ro*thot"o*nus (?), n. [NL., fr. Gr. pleyro`qen from the side + ||to`nos a stretching.] (Med.) A species of tetanus, in which the body ||is curved laterally. Quain. Dunglison.

||Pleu*rot"o*ma (?), n.; pl. L. PleurotomÊ (#), E. Pleurotomas (#). ||[NL., fr. Gr. &?; the side + tomh` a cut.] (Zoˆl.) Any marine ||gastropod belonging to Pleurotoma, and ether allied genera of the ||family PleurotmidÊ. The species are very numerous, especially in ||tropical seas. The outer lip has usually a posterior notch or slit.

Plev"in (?), n. [OF. plevine. See Replevin.] A warrant or assurance. [Obs.]

Plex"i*form (?), a. [Plexus + -form: cf. F. Plexiforme.] Like network; complicated. Quincy.

Plex*im"e*ter (?), n. [Gr. &?; stroke, percussion (from &?; to strike) + -meter.] (Med.) 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.]

Plex"ure (?), n. [See Plexus.] The act or process of weaving together, or interweaving; that which is woven together. H. Brooke.

Plex"us (?), n.; pl. L. Plexus, E. Plexuses (#). [L., a twining, braid, fr. plectere, plexum, to twine, braid.] 1. (Anat.) A network of vessels, nerves, or fibers.

2. (Math.) The system of equations required for the complete expression of the relations which exist between a set of quantities. Brande & C.

Pley (?), v. & n. See Play. [Obs.] Chaucer.

Pley (?), a. Full See Plein. [Obs.] Chaucer.

Pleyt (?), n. (Naut.) An old term for a river boat.

Pli`a*bil"i*ty (?), n. The quality or state of being pliable; flexibility; as, pliability of disposition. "Pliability of movement." Sir W. Scott.

Pli"a*ble (?), a. [F., fr. plier to bend, to fold. See Ply, v.] 1. Capable of being plied, turned, or bent; easy to be bent; flexible; pliant; supple; limber; yielding; as, willow is a pliable plant.

2. Flexible in disposition; readily yielding to influence, arguments, persuasion, or discipline; easy to be persuaded; -- sometimes in a bad sense; as, a pliable youth. "Pliable she promised to be." Dr. H. More.

-- Pli"a*ble*ness, n. -- Pli"a*bly, adv.