an object composed of randomly oriented crystals, formed by rapid solidification
[pol-ee-kris-tl-in, -ahyn, -een] /ˌpɒl iˈkrɪs tl ɪn, -ˌaɪn, -ˌin/ adjective 1. (of a rock or metal) composed of aggregates of individual crystals. 2. having or consisting of crystals that are variously oriented.
[pol-ee-kuhl-cher] /ˈpɒl iˌkʌl tʃər/ noun 1. the raising at the same time and place of more than one species of plant or animal. 2. a place where this is done.
[pol-ee-sahy-klik, -sik-lik] /ˌpɒl iˈsaɪ klɪk, -ˈsɪk lɪk/ adjective, Chemistry. 1. pertaining to an organic compound containing several atomic rings, usually fused. /ˌpɒlɪˈsaɪklɪk/ adjective 1. (of a molecule or compound) containing or having molecules that contain two or more closed rings of atoms 2. (biology) having two or more rings or whorls: polycyclic shells, a polycyclic […]
polycyesis pol·y·cy·e·sis (pŏl’ē-sī-ē’sĭs) n. Multiple pregnancy.