Pol`y*he"drous (?), a. Polyhedral.
Pol`y*his"tor (?), n. [Gr. &?; very learned.] One versed in various
learning. [R.]
Pol`y*hym"ni*a (?), n. [L., from Gr. &?;; poly`s many + &?; hymn.]
(Anc. Myth.) The Muse of lyric poetry.
Pol`y*i"o*dide (?), n. (Chem.) A iodide having more than one atom of
iodine in the molecule.
Po*lyl"o*gy (?), n. [Gr. &?;; poly`s much + &?; discourse.]
Talkativeness. [R.]
Po*lyl"o*quent (?), a. [Poly- + L. loquens, p. pr. of logui to speak.]
Garrulous; loquacious. [R.]
Pol`y*mas"tism (?), n. [Poly- + Gr. &?; a breast.] (Anat.) The
condition of having more than two mammÊ, or breasts.
Pol`y*math"ic (?), a. [Cf. F. polymathique. See Polymathy.] Pertaining
to polymathy; acquainted with many branches of learning.
Po*lym"a*thist (?), n. One versed in many sciences; a person of various
learning.
Po*lym"a*thy (?), n. [Gr. &?;; poly`s much + &?;, &?;, to learn.] The
knowledge of many arts and sciences; variety of learning. Johnson.
Pol`y*me*nis"cous (?), a. [See Poly- , and Meniscus.] (Zoˆl.) Having
numerous facets; -- said of the compound eyes of insects and
crustaceans.
Pol"y*mer (?), n. [See Polymeric.] (Chem.) Any one of two or more
substances related to each other by polymerism; specifically, a
substance produced from another substance by chemical polymerization.
[Formerly also written polymere.]
Pol`y*mer"ic (?), a. [Poly- + Gr. &?; part.] (Chem.) Having the same
percentage composition (that is, having the same elements united in the
same proportion by weight), but different molecular weights; -- often
used with with; thus, cyanic acid (CNOH), fulminic acid (C2N2O2H2), and
cyanuric acid (C3N3O3H3), are polymeric with each other.
The figures expressing the number of atoms of each element in a number
of polymeric substances are respectively multiples and factors of each
other, or have some simple common divisor. The relation may be merely a
numerical one, as in the example given above, or a chemical one, as in
the case of aldehyde, paraldehyde, and metaldehyde.
Po*lym"er*ism (?), n. (Chem.) (a) The state, quality, or relation of
two or more polymeric substances. (b) The act or process of forming
polymers.
Pol`y*mer`i*za"tion (?), n. (Chem.) The act or process of changing to a
polymeric form; the condition resulting from such change.
Pol"y*mer*ize (?), v. t. (Chem.) To cause polymerization of; to produce
polymers from; to increase the molecular weight of, without changing
the atomic proportions; thus, certain acids polymerize aldehyde.
Pol"y*mer*ize, v. i. (Chem.) To change into another substance having
the same atomic proportions, but a higher molecular weight; to undergo
polymerization; thus, aldehyde polymerizes in forming paraldehyde.
Po*lym"er*ous (?), a. 1. (Bot.) Having many parts or members in each
set. Gray.