| 释义 |
heterogonic, a.|ˌhɛtərəʊˈgɒnɪk|
[f. heterogony + -ic; in sense 1 ad. F. hétérogonique (A. Pézard 1918, in Bull. biol. de la France et de la Belg. LII. 25).]
1. = allometric a.
1924Nature 20 Dec. 895/1 Whereas in the male the ratio abdomen-breadth: carapace-breadth remained constant, in the female it increased continuously... Pézard (1918) has styled the growth of such an organ heterogonic. 1935Ibid. 14 Sept. 433/2 Heterogonic growth clearly involves a regularly continuous change of proportions. 1964H. W. Manner Elem. Compar. Embryol. xi. 216 Differential growth is referred to as heterogonic growth.
2. Exhibiting heterogony (sense 1 b); applied to a life-cycle in which free-living organisms alternate with parasites, and to the free-living generation of such a cycle.
1926J. H. Sandground in Amer. Jrnl. Hygiene VI. 338 In the genus Strongyloides [of nematodes] heterogony may be involved in the life-cycle, but in many instances there is only one multiplicative generation and this mode of development has been called direct or, if we may introduce a new term to express this, homogonic in contradistinction to heterogonic or indirect. 1936Amer. Jrnl. Hygiene XXIV. 83 No obvious necessity for the interpolation of a heterogonic generation in the reproductive cycle of S. ratti has manifested itself. 1951L. H. Hyman Invert. III. xiii. 304 The eggs..may develop into free-living males and females, the offspring of which proceed to the parasitic phase so that the cycle is indirect or heterogonic.
So ˌheteroˈgonically adv.
1932J. S. Huxley Probl. Rel. Growth ii. ii. 53 The trunk grows heterogonically with reference to the head. |