Pleu"ral (?), a. (Anat.) Of or pertaining to the pleura or pleurÊ, or
to the sides of the thorax.
||Pleu*ral"gi*a (?), n. [NL., fr. Gr. &?; rib + &?; pain.] (Med.) Pain
||in the side or region of the ribs.
||Pleu`ra*poph"y*sis (?), n.; pl. Pleurapophyses (#). [NL. See Pleura,
||and Apophysis.] (Anat.) One of the ventral processes of a vertebra,
||or the dorsal element in each half of a hemal arch, forming, or
||corresponding to, a vertebral rib. -- Pleu*rap`o*phys"i*al (#), a.
||Owen.
Pleu*ren"chy*ma (?), n. [Gr. &?; side + &?;, as in parenchyma.] (Bot.)
A tissue consisting of long and slender tubular cells, of which wood is
mainly composed.
Pleu"ric (?), a. (Anat.) Pleural.
Pleu"ri*sy (?), n. [F. pleurÈsie, L. pleurisis, pleuritis, Gr
pleyri^tis (sc. no`sos), fr. pleyra` rib, side.] (Med.) An inflammation
of the pleura, usually accompanied with fever, pain, difficult
respiration, and cough, and with exudation into the pleural cavity.
Pleurisy root. (Bot.) (a) The large tuberous root of a kind of milkweed
(Asclepias tuberosa) which is used as a remedy for pleuritic and other
diseases. (b) The plant itself, which has deep orange-colored flowers;
-- called also butterfly weed.
Pleu"rite (?), n. (Zoˆl.) Same as Pleuron.
{ Pleu*rit"ic (?), Pleu*rit"ic*al (?), } a. [L. pleuriticus, Gr. &?;:
cf. F. pleurÈtique.] (Med.) (a) Of or pertaining to pleurisy; as,
pleuritic symptoms. (b) Suffering from pleurisy.
||Pleu*ri"tis (?), n. [L.] (Med.) Pleurisy.
Pleu"ro- (?). [See Pleura.] A combining form denoting relation to a
side; specif., connection with, or situation in or near, the pleura;
as, pleuroperitoneum.
||Pleu`ro*brach"i*a (?), n. [NL. See Pleuro-, and Brachium.] (Zoˆl.) A
||genus of ctenophores having an ovate body and two long plumose
||tentacles.
Pleu"ro*branch (?), n. [See Pleuro- , and Branchia.] (Zoˆl.) Any one of
the gills of a crustacean that is attached to the side of the thorax.
||Pleu`ro*bran"chi*a (?), n.; pl. PleuroeranchiÊ (#). [NL.] (Zoˆl.)
||Same as Pleurobranch.
Pleu"ro*carp (?), n. [Pleuro- + Gr. &?; fruit.] (Bot.) Any pleurocarpic
moss.
{ Pleu`ro*car"pic (?), Pleu`ro*car"pous (?), } a. (Bot.) Side-fruited;
-- said of those true mosses in which the pedicels or the capsules are
from lateral archegonia; -- opposed to acrocarpous.
||Pleu`ro*cen"trum (?), n. [NL. see Pleuro-, and Centrum.] (Anat.) One
||of the lateral elements in the centra of the vertebrÊ in some fossil
||batrachians.
||Pleu*rod"e*res (?), n. pl. [NL., fr. Gr. &?; the side + &?; the
||neck.] (Zoˆl.) A group of fresh-water turtles in which the neck can
||not be retracted, but is bent to one side, for protection. The
||matamata is an example.
Pleu"ro*dont (?), a. [Pleuro- + Gr. &?;, &?;, a tooth.] (Anat.) Having
the teeth consolidated with the inner edge of the jaw, as in some
lizards.
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.
Pli"an*cy (?), n. The quality or state of being pliant in sense; as,
the pliancy of a rod. "Avaunt all specious pliancy of mind."
Wordsworth.
Pli"ant (?), a. [F. pliant, p. pr. of plier to bend. See Ply, v.] 1.
Capable of plying or bending; readily yielding to force or pressure
without breaking; flexible; pliable; lithe; limber; plastic; as, a
pliant thread; pliant wax. Also used figuratively: Easily influenced
for good or evil; tractable; as, a pliant heart.
The will was then ductile and pliant to right reason.
South.
2. Favorable to pliancy. [R.] "A pliant hour." Shak. -- Pli"ant*ly,
adv. -- Pli"ant*ness, n.
||Pli"ca (?), n. [LL., a fold, fr. L. plicare to fold. See Ply, v.] 1.
||(Med.) A disease of the hair (Plica polonica), in which it becomes
||twisted and matted together. The disease is of Polish origin, and is
||hence called also Polish plait. Dunglison.
2. (Bot.) A diseased state in plants in which there is an excessive
development of small entangled twigs, instead of ordinary branches.