Polyatomic
Pol′y‐a‐tom″ic (?), a. [Poly- + atomic.] (Chem.) (a) Having more than one atom in the molecule; consisting of several atoms. (b) Having a valence greater than one.
Dictionary
Webster's Dictionary 1913
Webster's Revised Unabridged Dictionary, C. & G. Merriam Co., 1913.
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Polyautography
Pol′y‐au‐tog″ra‐phy (?), n. [Poly- + autography.] The act or practice of multiplying copies of one's own handwriting, or of manuscripts, by printing from stone, — a species of l...
Polybasic
Pol′y‐ba″sic (?), a. [Poly- + basic.] (Chem.) Capable of neutralizing, or of combining with, several molecules of a monacid base; having several hydrogen atoms capable of being ...
Polybasite
Pol′y‐ba″site (?), n. [See Polybasic.] (Min.) An iron-black ore of silver, consisting of silver, sulphur, and antimony, with some copper and arsenic.
Polybranchia
‖Pol′y‐bran″chi‐a (?), n. pl. [NL. See Poly-, and Branchia.] (Zoöl.) A division of Nudibranchiata including those which have numerous branchiæ on the back.
Polybromide
Pol′y‐bro″mide (?), n. [Poly- + bromide.] (Chem.) A bromide containing more than one atom of bromine in the molecule.
Polycarpellary
Pol′y‐car″pel‐la‐ry (?), a.(Bot.) Composed of several or numerous carpels; — said of such fruits as the orange.
Polycarpic
{ Pol′y‐car″pic (?), Pol′y‐car″pous (?), } a. [Poly- + Gr. � fruit.] (Bot.) (a) Bearing fruit repeatedly, or year after year. (b) Having several pistils in one flower.
Polychæta
‖Pol′y‐chæ″ta (?), n. pl. [NL., from Gr. πολύσ many + � hair.] (Zoöl.) One of the two principal groups of Chætopoda. It includes those that have prominent parapodia and fascicle...
Polychloride
Pol′y‐chlo″ride (?), n. [Poly- + chloride.] (Chem.) A chloride containing more than one atom of chlorine in the molecule.
Polychœrany
Pol′y‐chœr″a‐ny (?), n. A government by many chiefs, princes, or rules. Cudworth.
Polychord
Pol″y‐chord (?), a. [Gr. �; πολύσ many + � string, cord.] Having many strings.
Polychord (2)
Pol″y‐chord, n.(Mus.) (a) A musical instrument of ten strings. (b) An apparatus for coupling two octave notes, capable of being attached to a keyed instrument.
Polychrest
Pol″y‐chrest (?), n. [Gr. � useful for many purposes; πολύσ many + � useful, fr. � to use: cf. F. polychreste.] (Med.) A medicine that serves for many uses, or that cures many d...
Polychroism
Pol″y‐chro‐ism (?), n. [Poly- + Gr. � color.] Same as Pleochroism.
Polychroite
Pol″y‐chro‐ite (?), n. [Poly- + Gr. � color: cf. F. polychroïte.] (Chem.) The coloring matter of saffron; — formerly so called because of the change of color on treatment with c...
Polychromate
Pol′y‐chro″mate (?), n. [See Polychromic.] (Chem.) A salt of a polychromic acid.
Polychromate (2)
Pol′y‐chro″mate, n. [See Polychromatic.] (Chem.) A compound which exhibits, or from which may be prepared, a variety of colors, as certain solutions derived from vegetables, whi...
Polychromatic
Pol′y‐chro‐mat″ic (?), a. [Poly- + chromatic.] Showing a variety, or a change, of colors.Polychromatic acid(Old Chem.), a substance obtained by the action of nitric acid on aloes.
Polychrome
Pol″y‐chrome (?), n. [Poly- + Gr. � color.] (Chem.) Esculin; — so called in allusion to its fluorescent solutions.
Polychrome (2)
Pol″y‐chrome, a. [Cf. F. polychrome.] Executed in the manner of polychromy; as, polychrome printing.
Polychromic
Pol′y‐chro″mic (?), a. [Poly- + (sense 1) Gr. �, or (sense 2) chromic.] 1. Polychromatic.2. (Chem.) Pertaining to, or designating, any one of several acids (known only in their ...
Polychromous
Pol′y‐chro″mous (?), a. Of or pertaining to polychromy; many-colored; polychromatic.
Polychromy
Pol″y‐chro′my (?), n. [Poly- + Gr. � color.] (Anc. Art) The art or practice of combining different colors, especially brilliant ones, in an artistic way.
Polychronious
Pol′y‐chro″ni‐ous (?), a. [Poly- + Gr. � for a long time, � time.] Enduring through a long time; chronic.
Polyclinic
Pol′y‐clin″ic (?), n. [Poly- + clinic.] (Med.) A clinic in which diseases of many sorts are treated; especially, an institution in which clinical instruction is given in all kin...
Polyconic
Pol′y‐con″ic (?), a. [Poly- + conic.] Pertaining to, or based upon, many cones.Polyconic projection(Map Making), a projection of the earth's surface, or any portion thereof, by ...