| 释义 |
heterotic, a.|hɛtəˈrɒtɪk|
[f. heterosis + -otic; in sense 1 f. directly on Gr. ἑτέρωσις alteration.]
1. Pertaining to the manipulation of differences (nonce-use).
1905G. M. Fisher tr. Höffding's Probl. Philos. ii. 99 The advance of knowledge consists in a reduction of differences (to a ‘heterotic minimum’) and in an approximation to a pure description of a continuous process.
2. Genetics. Pertaining to or exhibiting heterosis (sense 3).
1914Zeitschr. f. induktive Abstammungs- und Vererbungslehre XII. 127 A highly heterotic plant..because of its unusual vigor may develop branches from buds which in a weaker plant would remain dormant. 1944Bull. Torrey Bot. Club May 267 (heading) Heterotic hybrids. 1967Amer. Naturalist CI. 189 (heading) Opposite heterotic effects on male weights of reciprocal species hybrids.
▸ Physics. In string theory: designating or relating to a string which is conceived as combining features of 26-dimensional bosonic strings and 10-dimensional superstrings.
1985D. Gross et al. in Physical Rev. Lett. 54 502/2 We shall outline the construction of a new kind of closed-string theory... We show that the orientable, closed heterotic* string has [etc.]. [Note] *From the Greek ‘heterosis’: increased vigor displayed by cross-bred animals or plants. 1988S. W. Hawking Brief Hist. Time x. 162 A large number of people soon began to work on string theory and a new version was developed, the so-called heterotic string. 1997Nucl. Physics (B.) 506267 We consider axion-free quantum corrected black hole solutions in the context of the heterotic S-T model with half the N = 2, D = 4 supersymmetries unbroken. 2002UFO Mag. Jan. 20/3 The Horava–Witten theory, together with the heterotic M-theory, propose that particles are constrained to move on one of the three-dimensional boundaries on either side of the extra dimensional interval. |