| 单词 | urohyal |
| 释义 | urohyal, a. and n. Comp. Anat.|-ˈhaɪəl| [f. uro-2: see hyoid a. and -al 1.] a. adj. Forming or relating to a median posterior process or part of the hyoid arch in fishes or birds. b. n. The bone forming this.
1835–6Owen in Todd's Cycl. Anat. I. 345/1 The superior larynx [in birds]..rests upon the uro-hyal element of the os hyoides. 1848― Archetype & Homol. Vertebr. Skel. 69 In most others [sc. fishes] there is..another..bone, which expands vertically as it extends backwards, in the middle line, from the basihyals; this is the ‘urohyal’. 1888Rolleston & Jackson Anim. Life 93 A thin median bone, the basi-branchiostegal (= urohyal of Huxley). |

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