n. [ L. polium, the name of a plant, perhaps Teucrium polium, Gr. &unr_;. ] (Bot.) A whitish woolly plant (Teucrium Polium) of the order Labiatæ, found throughout the Mediterranean region. The name, with sundry prefixes, is sometimes given to other related species of the same genus. [ Spelt also poley. ] [ 1913 Webster ]

Poly mountain. See Poly-mountain, in Vocabulary. [ 1913 Webster ]

[ See Full, a. ] A combining form or prefix from Gr. poly`s, many; as, polygon, a figure of many angles; polyatomic, having many atoms; polychord, polyconic. [ 1913 Webster ]

a. [ Poly- + acid. ] (Chem.) Capable of neutralizing, or of combining with, several molecules of a monobasic acid; having more than one hydrogen atom capable of being replaced by acid radicals; -- said of certain bases; as, calcium hydrate and glycerin are polyacid bases. [ 1913 Webster ]

a. [ Poly- + acoustic: cf. F. polyacoustique. ] Multiplying or magnifying sound. -- n. A polyacoustic instrument. [ 1913 Webster ]

n. The art of multiplying or magnifying sounds. [ 1913 Webster ]

‖n.; pl. Polyacra E. Polyacrons [ NL., fr. Gr. poly`s many + 'a`kron summit. ] (Geom.) A solid having many summits or angular points; a polyhedron. [ 1913 Webster ]

‖n. pl. [ NL. See Poly-, and Actinia. ] (Zool.) An old name for those Anthozoa which, like the actinias, have numerous simple tentacles. [ 1913 Webster ]

‖n. pl. [ NL., fr. Gr. poly`s many + &unr_; brother. ] (Bot.) A Linnæan class of plants having stamens united in three or more bodies or bundles by the filaments. [ 1913 Webster ]

{ } a. (Bot.) Belonging to the class Polyadelphia; having stamens united in three or more bundles. [ 1913 Webster ]

‖n. pl. [ NL. See Polyandry. ] (Bot.) A Linnæan class of monoclinous or hermaphrodite plants, having many stamens, or any number above twenty, inserted in the receptacle. [ 1913 Webster ]