Found 1 items, similar to Polysynthetic twinning.
English → English (gcide) Definition: Polysynthetic twinning Polysynthetic \Pol`y*syn*thet"ic\ (p[o^]l`[i^]*s[i^]n*th[e^]t"[i^]k), a. [Poly- + synthetic.] Characterized by polysynthesis; agglutinative. [1913 Webster] Polysynthetic twinning (Min.), repeated twinning, like that of the triclinic feldspar, producing fine parallel bands in alternately reversed positions. [1913 Webster] Twinning \Twin"ning\, n. (Crystallog.) The assemblage of two or more crystals, or parts of crystals, in reversed position with reference to each other in accordance with some definite law; also, rarely, in artificial twinning (accomplished for example by pressure), the process by which this reversal is brought about. [1913 Webster] Polysynthetic twinning, repeated twinning of crystal lamell[ae], as that of the triclinic feldspars. Repeated twinning, twinning of more than two crystals, or parts of crystals. Twinning axis, Twinning plane. See the Note under Twin, n. [1913 Webster]