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单词 ambigenous
释义

ambigenousadj.

Brit. /amˈbɪdʒᵻnəs/, /amˈbɪdʒn̩əs/, U.S. /æmˈbɪdʒənəs/
Origin: Formed within English, by compounding, partly modelled on a Latin lexical item. Etymons: ambi- prefix, -genous comb. form.
Etymology: < ambi- prefix + -genous comb. form, at least partly after post-classical Latin ambigenus hybrid (12th cent. in a British source), (in geometry) designating a specific kind of curve ( I. Newton Enumeratio linearum tertii ordinis 6 in Optice (1706)).Specific senses. The author of quot. 1763 at sense 1 claims (in a footnote) to have coined the English word. In quot. 1879 at sense 1 with reference to a scientific Latin use of ambigenus , designating a type of calyx: C. F. Brisseau de Mirbel Élémens de physiol. végétale et de bot. II. (1815) 725. With sense 2 compare earlier ambigenal adj., and also French ambigène (1751 in geometry).
1. Hybrid; (also) †having parts of two different types (obsolete). Now rare or disused.
ΚΠ
1763 H. Dalrymple Rodondo: Canto II 10 They say your G—ce is like a Mule, Ambigenous of Knave and Fool.
1860 J. Phillips Life on Earth 195 Nature mixed these generic plants, by ambigenous generations.
1879 New Sydenham Soc. Lexicon Ambigenous, a term applied by Mirbel to a multifoliate calyx, of which the outer row of sepals presents the ordinary characters of sepals, and the inner row those of petals, as in Grewia passiflora. It is also used in the sense of bastard.
1935 Jrnl. Royal Asiatic Soc. Oct. 710 But to one Western student at least this ambigenous literature—to use a term more urbane than is hybrid—presents a more gracious aspect than it can exhibit to a Chinese scholar of the old order.
2. Geometry. Designating a curve resembling one branch of a hyperbola, one half crossing the asymptote before converging to it. Chiefly in ambigenous hyperbola. Cf. ambigenal adj. Obsolete.
ΚΠ
1788 Ladies' Diary 44 Two ambigenous hyperbolas at d and δ, and one inscribed at D.
1873 G. Salmon Treat. Higher Plane Curves (ed. 2) 172 There are an inscribed, ambigenous, and circumscribing hyperbola.
1891 Proc. London Math. Soc. 22 116 Nicole..asserted that there was in addition a tenth species coalescing with the ambigenous hyperbolic branch.
This entry has been updated (OED Third Edition, March 2020; most recently modified version published online December 2021).
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adj.1763
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