Shak. (Folio ed.)

Those countries where shrubs are plenty.

Goldsmith.

||Ple"num (?), n. [L., fr. plenus full.] That state in which every part

||of space is supposed to be full of matter; -- opposed to vacuum. G.

||Francis.

Ple`o*chro"ic (?), a. Having the property of pleochroism.

Ple*och"ro*ism (?), n. [Gr.&?; mor&?; + &?; color.] (Crystallog.) The

property possessed by some crystals, of showing different colors when

viewed in the direction of different axes.

Ple*och`ro*mat"ic (?), a. Pleochroic.

Ple`o*chro"ma*tism (?), n. Pleochroism.

Ple*och"ro*ous (?), a. Pleochroic.

Ple`o*mor"phic (?), a. Pertaining to pleomorphism; as, the pleomorphic

character of bacteria.

Ple`o*mor"phism (?), n. [Gr. &?; more + &?; form.] 1. (Crystallog.) The

property of crystallizing under two or more distinct fundamental forms,

including dimorphism and trimorphism.

2. (Biol.) The theory that the various genera of bacteria are phases or

variations of growth of a number of Protean species, each of which may

exhibit, according to undetermined conditions, all or some of the forms

characteristic of the different genera and species.

Ple`o*mor"phous (?), a. Having the property of pleomorphism.

Ple"o*nasm, (&?;), n. [L. pleonasmus, Gr. &?;, fr. &?; to be more than

enough, to abound, fr.&?;, neut. of &?;, more, compar. of &?; much. See

Full, a., and cf. Poly-, Plus.] (Rhet.) Redundancy of language in

speaking or writing; the use of more words than are necessary to

express the idea; as, I saw it with my own eyes.

Ple"o*nast (?), n. One who is addicted to pleonasm. [R.] C. Reade.

Ple"o*naste, n. [Gr.&?; abundant, rich; cf. F. plÈonaste.] (Min.) A

black variety of spinel.

{ Ple`o*nas"tic (?), Ple`o*nas"tic*al (?), } a. [Cf. F. plÈonastique.]

Of or pertaining to pleonasm; of the nature of pleonasm; redundant.

Ple`o*nas"tic*al*ly, adv. In a pleonastic manner.

Ple"o*pod (?), n.; pl. E. Pleopods (#), L. Pleopoda (#). [Gr. &?; to

swim + -pod.] (Zoˆl.) One of the abdominal legs of a crustacean. See

Illust. under Crustacea.

Ple"rome (?), n. [Gr. &?; that which fills up, fr. &?; to fill.] (Bot.)

The central column of parenchyma in a growing stem or root.

Ple*roph"o*ry (?), n. [Gr. &?;; &?; full + &?; to bear.] Fullness; full

persuasion. "A plerophory of assurance." Bp. Hall.

Ples"ance (?), n. Pleasance. [Obs.] Chaucer.

Plesh (?), n. A pool; a plash. [Obs.] Spenser.

Ple`si*mor"phism (?), n. [Gr. &?; near + &?; form.] (Crystallog.) The

property possessed by some substances of crystallizing in closely

similar forms while unlike in chemical composition.

Ple`si*o*mor"phous (?), a. Nearly alike in form.

Ple"si*o*saur (?), n. (Paleon.) One of the Plesiosauria.

||Ple`si*o*sau"ri*a (?), n. pl. [NL. See Plesiosaurus.] (Paleon.) An

||extinct order of Mesozoic marine reptiles including the genera

||Plesiosaurus, and allied forms; -- called also Sauropterygia.

Ple`si*o*sau"ri*an (?), n. (Paleon.) A plesiosaur.

||Ple`si*o*sau"rus (?), n.; pl. Plesiosauri (#). [NL., fr. Gr &?; near

||+ &?; a lizard.] (Paleon.) A genus of large extinct marine reptiles,

||having a very long neck, a small head, and paddles for swimming. It

||lived in the Mesozoic age.

Ples*sim"e*ter (?), n. See Pleximeter.

Plete (?), v. t. & i. To plead. [Obs.] P. Plowman.

Pleth"o*ra (?), n. [NL., fr. Gr. &?;, fr. &?; to be or become full. Cf.

Pleonasm.] 1. Overfullness; especially, excessive fullness of the blood

vessels; repletion; that state of the blood vessels or of the system

when the blood exceeds a healthy standard in quantity; hyperÊmia; --

opposed to anÊmia.

The Gutenberg Webster's Unabridged Dictionary: Section P and Q · 第 950 / 2103 题