| 释义 |
monogenous, a.|məˈnɒdʒɪnəs|
[f. Gr. µόνο-ς mono- + γέν-ος kind, origin, γεν- to grow, produce (see -gen) + -ous.]
1. Bot. (See quot. 1856.)
1856Mayne Expos. Lex., Monogenus, Bot., applied by Lessing to monocotyledonous plants, because they have but one surface of increase, which is central: monogenous. 1891in Syd. Soc. Lex. 1900B. D. Jackson Gloss. Bot. Terms, Monogenous = Endogenous.
2. = monogeneous a. 1.
1866Reader 15 Sept. 796 One wild bird may have been the ancestor of all the fantails, another of all the carriers, and so on. Thus domestic pigeons may be said to be ‘monogenous’ as to their origin from one wild species, ‘polygenous’ as to the individual ancestor of each variety. 1891in Syd. Soc. Lex.
3. Chem. = monogenic 2.
1870Eng. Mech. 11 Feb. 524/1 Chlorine forms only one compound with hydrogen... Chlorine may, for this reason, be called a monogenous element.
4. Geol. (See quot.) Cf. monogenic 1.
1888Teall Brit. Petrogr. 440 Monogenous, a word applied by some authors to clastic rocks the fragments of which are derived solely from one rock.
5. Biol. Used as a general designation for gemmation, or sporulation, as modes of asexual reproduction involving but one parent.
1884Sedgwick tr. Claus' Zool. I. 96 Reproduction by fission, which, with that by budding and spore-formation, is included under the term monogenous asexual reproduction.
6. ‘Of or pertaining to monogenism’ (Cent. Dict.).
7. Math. ‘Having a single differential coefficient considered as a rule of generation’ (Cent. Dict.); = monogenic 3. |