| 释义 |
▪ I. allomorph1 Min.|ˈæləʊmɔːf|
[f. allo- + Gr. µορϕή form.]
A distinct crystalline form without change of chemical composition. Hence alloˈmorphic a.1, alloˈmorphism.
1866King & Rowney in Q. Jrnl. Geol. Soc. XXII. i. 187 All these varieties are considered to belong to one axial system—the monoclinate; but being obviously of other forms than one, and as they are all chemically alike, we propose to call them allomorphs. Like aragonite, calcite is also subject to allomorphism. Ibid. 193 It is our present impression that flocculite is merely an allomorph of serpentine. Ibid., There is an allomorphic variety of serpentine known as chrysolite.
▪ II. allomorph2 Philol.|ˈæləʊmɔːf|
[f. allo- 3 + morpheme.]
A morphemic alternant; one of two or more morphs making up a morpheme. Hence alloˈmorphic a.2
1948E. A. Nida in Language XXIV. 420 Morphemic alternants can conveniently be called allomorphs. Accordingly, allomorphs are related to morphemes as allophones are related to phonemes. 1949― Morphology (ed. 2) ii. 21 Allomorphic differences of tone may be described in terms of different tonal surroundings. 1951Trager & Smith Outl. Eng. Struct. ii. 60 Suffixes, especially inflectional ones, usually have many allomorphs. 1953C. E. Bazell Ling. Form i. 8 Allomorphs are not to be regarded as segments, since this way of treating them gives rise to the impression that they are not minimal units. 1962E. F. Haden et al. Resonance-Theory Linguistics iii. 30 The forms..showed,..handed,..are..analyzable into stem + suffix:../ʃow/ + /d/, /hænd/ + /id/... Each of these endings signals the same grammatical meaning, namely, ‘past’, and they can all be classed together in the morpheme {ob}-D{cb} (or {ob}past{cb})... The several allomorphs of this morpheme ({ob}M1{cb}) are statable as sets of phonemes, but more accurately as sets of allophones. |