Polygonum, po-lig′o-num, n. a kind of plant with many joints, as the bistort, knotweed, &c.—n.pl. Polygonā′ceæ, an order of apetalous plants, mostly herbs—the buckwheat family. [Gr. polys, many, gonu, a knee.]
Polygram, pol′i-gram, n. a figure consisting of many lines.—adj. Polygrammat′ic.
Polygraph, pol′i-graf, n. an instrument for multiplying copies of a writing: a collection of different books.—adjs. Polygraph′ic, -al.—n. Polyg′raphy, voluminous writing: art of writing in various ciphers.
Polygyny, pō-lij′i-ni, n. polygamy.—n. Pol′ygyn, a plant of the order Polygyn′ia (pl.), the 12th order in the first 13 classes of the Linnæan artificial system of plants, embracing those having flowers with more than twelve styles.—adjs. Polygyn′ian, Polygyn′ic, Polyg′ynous. [Gr. polys, many, gynē, woman.]
Polyhedron, pol-i-hē′dron, n. a solid body with many bases or sides.—adjs. Polyhē′dral, Polyhē′drical, Polyhē′drous. [Gr. polys, many, hedra, a base.]
Polyhistor, pol-i-his′tor, n. a person of great and varied learning.
Polyhymnia, pol-i-him′ni-a, n. the muse of the sublime hymn. [Gr. polys, many, hymnos, a hymn.]
Polymathy, pō-lim′a-thi, n. knowledge of many arts and sciences.—n. Pol′ymath, a person possessing this.—adj. Polymath′ic.—n. Polym′athist.
Polymerism, pō-lim′ėr-ism, n. a particular form of isomerism, the property possessed by several compounds of having similar percentage composition but different molecular weights. [Gr. polys, many, meros, part.]
Polymorphous, pol-i-mor′fus, adj. having many forms: varying in appearance: taking on many changes—also Polymor′phic.—ns. Pol′ymorph, an organism showing polymorphism: a substance that crystallises in two or more systems; Polymor′phism, the property of being polymorphous. [Gr. polys, many, morphē, form.]