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单词 outbreeding
释义

outbreedingn.

Brit. /ˈaʊtˌbriːdɪŋ/, U.S. /ˈaʊtˌbridɪŋ/
Origin: Formed within English, by derivation. Etymons: out- prefix, breeding n.
Etymology: < out- prefix + breeding n., after in-breeding n. Compare later outbred adj., outbreed v. 2.
The breeding together of parental organisms that are unrelated or not closely related.
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the world > life > biology > biological processes > genetic activity > heredity or hereditary descent > [noun] > cross-breeding or hybridism
nick1824
crossing1851
hybridization1851
hybridism1854
intercrossing1859
hybridation1879
outcrossing1890
paragenesis1890
outbreeding1901
back-crossing1904
vicinism1905
monohybridism1907
cross-breeding1932
1901 Bull. U.S. Dept. Agric. Div. Veg. Physiol. 29 38 ‘In-and-in breeding’, ‘outbreeding’ and other expressions relating to the close or distant relationship of parents have been prominent subjects among animal breeders.
1902 Encycl. Brit. XXV. 372/2 The tribes practised far more in-breeding than outbreeding.
1919 E. M. East & D. F. Jones Inbreeding & Outbreeding i. 13 Interest in the effects of inbreeding and of outbreeding is not confined to the professional biologist.
1940 Nature 30 Mar. 485/2 If we are to regard unisexuality simply as one of a number of outbreeding mechanisms, it is necessary to account for the fact that it is frequently found in some groups..but rare in others.
1964 E. J. H. Corner Life of Plants xi. 197 Flowers have devices..to carry pollen from one flower to another, and, preferably, from one plant to another, to secure outbreeding.
1985 D. S. Bendall Evol. from Molecules to Men (BNC) 497 The costs of outbreeding may include the risk of infections from pathogens carried by the partner.
This entry has been updated (OED Third Edition, December 2004; most recently modified version published online March 2022).
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n.1901
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