retrocopulationn.
/ˌrɛtrə(ʊ)ˌkɒpjᵿˈleɪʃn/, U.S. /ˈˌrɛtroʊˌkɑpjəˈleɪʃ(ə)n/, /ˈˌrɛtroʊˌkoʊpjəˈleɪʃ(ə)n/ Chiefly Zoology. rare.
The action or fact of copulating back to back (as is a normal stage of mating in dogs, and was formerly supposed to occur in retromingent mammals). Later also: the action of copulating from behind (i.e. with the male behind the female, as in most mammals).
ΘΚΠ
the world > animals > animal body > general parts > sexual organs and reproduction > [noun] > copulation > act of copulating backwards
retrocopulation1646
1646 Sir T. Browne Pseudodoxia Epidemica 151 From the nature of this position [of the penis in hares], there ensueth a necessitie of Retrocopulation . View more context for this quotation
1882 Ogilvie's Imperial Dict. (new ed.) Retro-copulation, the act or character of copulating from behind.
1908 J. Wynkoop Rebellion of Hell vii. 115 Ye plenipotentiary of barren thought, Whose retrocopulation breeds but rot.
1984 Times Lit. Suppl. 7 Sept. 984/3 Though the camel is retromingent, its powerful protractor muscles absolve it from the difficult feat of retrocopulation.
2003 M. S. Morton Lover's Tongue xiv. 186 Retrocopulation—that is, copulating from behind—was considered sinful because it was ‘beastly’.
This entry has been updated (OED Third Edition, March 2010; most recently modified version published online March 2022).
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n.1646