hypso-
(ˈhɪpsəʊ)
repr. rare Gr. ὑψο-, used with same force as ὑψι- hypsi-; in modern use, sometimes taken as comb. form of ὕψος ‘height’. Hence hypsoceˈphalic a. = hypsicephalic; so hypsoˈcephalous a. and hypsoˈcephaly (Syd. Soc. Lex. 1886). ˈhypsodont a. [Gr. ὀδοντ- tooth], of teeth: having high or lengthened crowns with short roots. hypsophonous (hɪpˈsɒfənəs) a. [Gr. ὑψόϕωνος (ϕωνή voice)], ‘having a high clear voice’ (Syd. Soc. Lex. 1886). hypsophyll (ˈhɪpsəʊfɪl) Bot. [Gr. ϕύλλ-ον leaf: repr. Ger. hochblatt], a leaf of the inflorescence, a bract or bracteole; hence hypsoˈphyllar, -ˈphyllary, -ˈphyllous adjs.
| 1878 Bartley tr. Topinard's Anthrop. v. 176 *Hypso⁓cephalic, elevated skull. |
| 1883 W. H. Flower in Encycl. Brit. XV. 430/1 Modification of [the selenodont form] from a brachyodont to a *hypsodont type. [1880 Gray Struct. Bot. (ed. 6) 416/1 Hypsophylla, answers to the German ‘Hochblätter’, or high leaves, those of the inflorescence, i.e. bracts and the like.] |
| 1895 Vines Stud. Text-bk. 76 There are two kinds [of leaves of the sporophore]; those which bear sporangia..termed sporophylls; those which do not bear sporangia, termed *hypsophylls. |
| 1877 Bennett tr. Thomé's Struct. Bot. 86 The bracts or *hypsophyllar leaves, i.e. those leaves, in the axils of which the flowers are placed. |
| 1875 Bennett & Dyer Sachs' Bot. 546 The mode of insertion of the cataphyllary and foliage-leaves, and very often that of the *hypsophyllary leaves (as for instance that of the spathe)..is generally amplexicaul. |
| 1880 Gray Struct. Bot. (ed. 6) 6 note, *Hypsophyllous. |
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ˈhypsodonty Zool., the condition of being hypsodont; the extent to which this condition is present in a particular animal.
| 1918 T. W. Todd Introd. Mammalian Dentition iv. 88 In the most advanced type, Macropus..the teeth are long crowned or hypsodont... This hypsodont character should be contrasted with the *hypsodonty in the bandicoot, Thalacomys. Ibid. xx. 261 In the Horse which is an example of extreme hypsodonty the milk dentition even today is less high-crowned. 1944 G. G. Simpson Tempo & Mode in Evolution i. 8 Among many possible measures of hypsodonty, the following index was selected as best adapted to the available material: 100 × (paracone height)/(ectoloph length). 1983 E. C. Minkoff Evolutionary Biol. xvii. 295/1 The evolution of hypsodonty [in the horse] has continued to accelerate, especially since the Miocene. |