||Pol`y*pla*coph"o*ra (?), n. pl. [NL. See Poly-, and Placophora.]
||(Zoˆl.) See Placophora.
Pol`y*plas"tic (?), a. [Poly- + -plastic.] (Biol.) Assuming, or having
the power of assuming, many forms; as, a polyplastic element which does
not preserve its original shape.
Pol`y*pode (?), n. [Cf. F. polypode. See Polypody.] (Bot.) A plant of
the genus Polypodium; polypody. [Written also polypod.]
Pol"y*pode, n. [Gr. &?;, &?;, the wood louse, milleped: cf. F.
polypode. See Polyp.] (Zoˆl.) An animal having many feet; a myriapod.
Pol"y*po`di*um (?), n. [L., fr. Gr. &?;, dim. of &?;. See Polyp, and
cf. 2d Polypode.] (Bot.) A genus of plants of the order Filices or
ferns. The fructifications are in uncovered roundish points, called
sori, scattered over the inferior surface of the frond or leaf. There
are numerous species.
Pol"y*po`dy (?), n. (Bot.) Any plant of the genus Polypodium.
Pol"y*poid (?), a. [Polyp + - oid.] 1. (Zoˆl.) Like a polyp; having the
nature of a polyp, but lacking the tentacles or other parts.
2. (Med.) Resembling a polypus in appearance; having a character like
that of a polypus.
||Pol`y*po*me*du"sÊ (?), n. pl. [NL. See Polyp, and Medusa.] (Zoˆl.)
||Same as Hydrozoa.
Po*lyp"o*rous (?; 277), a. [Poly- + porous.] Having many pores. Wright.
||Po*lyp"o*rus (?), n.; pl. Polypori (#). [NL., fr. Gr. poly`s many +
||&?; a pore.] (Bot.) A genus of fungi having the under surface full of
||minute pores; also, any fungus of this genus.
Polyporus fomentarius was formerly dried and cut in slices for tinder,
called amadou. P. betulinus is common in America, and forms very large
thick white semicircular excrescences on birch trees. Several species
of Polyporous are considered edible.
Pol"y*pous (?), a. [Cf. F. polypeux. See Polyp.] Of the nature of a
polypus; having many feet or roots, like the polypus; affected with
polypus.
{ Pol`y*prag*mat"ic (?), Pol`y*prag*mat"ic*al (?), } a. [Poly- +
pragmatic, - ical.] Overbusy; officious. [R.] Heywood.
Pol`y*prag"ma*ty (?), n. [Poly- + Gr. &?; business.] The state of being
overbusy. [R.]
||Pol`y*pro`to*don"ta (?), n. pl. [NL., fr. Gr. poly`s many + &?; first
||+ &?;, &?;, tooth.] (Zoˆl.) A division of marsupials in which there
||are more fore incisor teeth in each jaw.
||Po*lyp`te*roi"de*i (?), n. pl. [NL. See Polypterus, and -oid.]
||(Zoˆl.) A suborder of existing ganoid fishes having numerous fins
||along the back. The bichir, or Polypterus, is the type. See Illust.
||under Crossopterygian.
Po*lyp`te*rus (?), n. [NL., fr. Gr. poly`s many + &?; feather, wing.]
(Zoˆl.) An African genus of ganoid fishes including the bichir.
||Pol`yp*to"ton (?), n. [L., fr. Gr. &?; having, or being in, many
||cases; poly`s many + &?; case.] (Rhet.) A figure by which a word is
||repeated in different forms, cases, numbers, genders, etc., as in
||Tennyson's line, -- "My own heart's heart, and ownest own, farewell."
Pol"y*pus (?), n.; pl. E. Polypuses (#), L. Polypi (#). [L. See Polyp.]
1. (Zoˆl.) Same as Polyp.
2. (Med.) A tumor, usually with a narrow base, somewhat resembling a
pear, -- found in the nose, uterus, etc., and produced by hypertrophy
of some portion of the mucous membrane.
Pol`y*rhi"zous (?), a. [Gr. &?;; poly`s many + &?; root.] (Bot.) Having
numerous roots, or rootlets.
Pol`y*sche"ma*tist (?), a. [Poly- + Gr. &?; form, manner.] Having, or
existing in, many different forms or fashions; multiform.
Pol"y*scope (?), n. [Gr. &?; farseeing; poly`s much, many + &?; to
view: cf. F. polyscope.] 1. (Opt.) A glass which makes a single object
appear as many; a multiplying glass. Hutton.
2. (Med.) An apparatus for affording a view of the different cavities
of the body.
Pol`y*sep"al*ous (?), a. [Poly- + sepal.] (Bot.) Having the sepals
separate from each other.
Pol`y*si*lic"ic (?), a. [Poly- + silicic.] (Chem.) Of or pertaining to
compounds formed by the condensation of two or more molecules of
silicic acid.
Polysilicic acid (Chem.), any one of a series of acids formed by the
condensation of two or more molecules of silicic acid, with elimination
of water.
Pol"y*spast (?), n. [L. polyspaston, fr. Gr. &?;, fr. &?; drawn by
several cords; poly`s many + &?; to draw: cf. F. polyspaste.] (Surg.) A
machine consisting of many pulleys; specifically, an apparatus formerly
used for reducing luxations.
Pol`y*sper"mous (?), a. [Gr. &?;; poly`s many + &?; seed.] (Bot.)
Containing many seeds; as, a polyspermous capsule or berry. Martyn.
Pol"y*sper`my (?), n. (Biol.) Fullness of sperm, or seed; the passage
of more than one spermatozoˆn into the vitellus in the impregnation of
the ovum.
Pol`y*spor"ous (?), a. [Poly- + spore.] (Bot.) Containing many spores.
||Pol`y*stom"a*ta (?), n. pl. [NL., from Gr. poly`s many + &?;, &?;,
||mouth.] (Zoˆl.) A division of trematode worms having more two
||suckers. Called also Polystomea and Polystoma.
Pol"y*stome (?), a. [Gr. &?; many- mouthed; poly`s + sto`ma mouth.]
(Zoˆl.) Having many mouths.
Pol"y*stome, n. (Zoˆl.) An animal having many mouths; -- applied to
Protozoa.
Pol"y*style (?), a. [Gr. &?; with many columns; poly`s many + &?;
column: cf. F. polystyle.] (Arch.) Having many columns; -- said of a
building, especially of an interior part or court; as, a polystyle
hall. -- n. A polystyle hall or edifice.
Pol`y*sul"phide (?), n. [Poly- + sulphide.] (Chem.) A sulphide having
more than one atom of sulphur in the molecule; -- contrasted with
monosulphide.