单词 | heterocoelous |
释义 | > as lemmasˌheteroˈcoelous ˌheteroˈcoelous adj. Brit. /ˌhɛt(ə)rə(ʊ)ˈsiːləs/ , U.S. /ˌhɛdəroʊˈsiləs/ , /ˌhɛdərəˈsiləs/ [Greek κοῖλος hollow] Zoology applied to vertebrae in which the articular facets are saddle-shaped, as in certain birds.ΘΚΠ the world > animals > birds > bones > [adjective] > of vertebrae heterocoelous1884 sacrarial1890 synsacral1903 the world > animals > animal body > general parts > constituent materials > [adjective] > vertebrate > having saddle-shaped joints heterocoelous1884 1884 E. Coues Key to N. Amer. Birds (ed. 2) 138 Both ends of each vertebra are saddle-shaped;..a condition which may be called heterocœlous. 1897 T. J. Parker & W. A. Haswell Text-bk. Zool. II. 358 The centrum in sagittal section appears opisthocœlous, in horizontal section procœlous. This peculiar form of vertebra is distinguished as heterocœlous. 1933 H. F. Gadow Evol. Vertebral Column xxxv. 311 The embryonic vertebrae of all Birds are at first amphicoelous, then they change through opisthocoelous into the heterocoelous or saddle-shaped type, which..represents the highest stage of interaxial joint, allowing of most excursion. < as lemmas |
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