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单词 choana
释义 choana Anat.|ˈkəʊənə|
Pl. -næ |-niː|.
[mod.L., a. Gr. χοάνη funnel.]
A funnel-like opening; applied to the posterior nasal orifices in vertebrates.
1878Macalister Syst. Zool. 13 The pair of maxillary lobes usually unite in the middle line, leaving behind them openings into the nasal cavities (choanæ).1895H. & M. Bernard tr. Wiedersheim's Struct. Man. 61 The choanæ of the Veddah's skull are..half a centimetre lower than in the European.1958J. M. Yoffey in W. J. Hamilton et al. Textbk. Human Anat. 407 The choanae are oval in shape, being about 1 inch high and ½ inch wide.
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