Polyhedral angle, an angle bounded by three or more plane angles having a common vertex.

(Pol`y*he"dron) n.; pl. E. Polyhedrons. L. Polyhedra [NL., fr. Gr. with many seats or sides; poly`s many + a seat or side: cf. F. polyèdre.]

1. (Geom.) A body or solid contained by many sides or planes.

2. (Opt.) A polyscope, or multiplying glass.

(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*gyn) n. [Cf. F. polygyne. See Polygyny.] (Bot.) A plant of the order Polygynia.

(||Pol`y*gyn"i*a) n. pl. [NL. See Polygyny.] (Bot.) A Linnæan order of plants having many styles.

(Pol`y*gyn"i*an Po*lyg"y*nous) a. (Bot.) Having many styles; belonging to the order Polygynia.

(Po*lyg"y*nist) n. One who practices or advocates polygyny. H. Spenser.

(Po*lyg"y*ny) n. [Poly- + Gr. woman, wife.] The state or practice of having several wives at the same time; marriage to several wives. H. Spenser.

(Pol`y*ha"lite) n. [Poly- + Gr. salt.] (Min.) A mineral usually occurring in fibrous masses, of a brick-red color, being tinged with iron, and consisting chiefly of the sulphates of lime, magnesia, and soda.

(Pol`y*he"dral Pol`y*hed"ric*al) a. [See Polyhedron.] (Geom.) Having many sides, as a solid body.

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