| 单词 |
monomorphism |
| 释义 |
monoˈmorphism
[f. as prec. + -ism.]
1. The condition of being monomorphous. Cf. monomorphic a.
1863Walsh in Proc. Entom. Soc. Philad. II. 223 Monomorphism is the rule; Dimorphism is the exception. 1957Cold Spring Harbor Symp. Quantitative Biol. XXII. 399/1 In nature..it is unlikely that..a reversion to monomorphism will often occur. 1960Proc. Nat. Acad. Sci. XLVI. 45 The replacement of the balanced polymorphisms present in the parental races by chromosomal monomorphisms certainly proves that acquisition in evolution of a balanced polymorphic condition need not be irreversible. 1973Nature 31 Aug. 575/1 Most loci tend to monomorphism in reproductively as well as geographically isolated populations.
2. Math. A one-to-one homomorphism.
1956C. Chevalley Fund. Concepts Algebra i. 11 A homomorphism which is injective is called a monomorphism; a homomorphism which is surjective is called an epimorphism. 1969F. M. Hall Introd. Abstr. Algebra II. ii. 39 In a monomorphism different objects always have different images. 1971E. C. Dade in Powell & Higman Finite Simple Groups viii. 252 The diagonal map σ → σ × σ is a natural monomorphism of G into G × G. |
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单词 monomial 释义 monomial, n. and a.|mnml|[irreg. f. mono- after binomial. Cf. monome an......