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单词 round window
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round window
round window n. [after post-classical Latin fenestra rotunda (1651 or earlier)] Anatomy and Zoology the opening into the cochlea from the tympanic cavity, which is covered by a membrane (the secondary tympanic membrane); = fenestra rotunda at fenestra n. 1; cf. oval window n. at oval adj.2 and n.1 Compounds 3.
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1663 N. Culpeper & A. Cole tr. T. Bartholin Anat. (new ed.) iv. vi. 343/1 (caption) The Fenestra Rotunda, round window.
1718 J. Chamberlayne tr. B. Nieuwentyt Relig. Philosopher I. xiii. §7. 249 There are yet two Openings in..the Drum [of the ear]: the first of 'em are called the Oval Window... The other is called the Round Window.
1892 E. R. Lankester tr. E. Haeckel Hist. Creation (ed. 4) II. 302 All Amnionate animals have a so-called cochlea in the organ of hearing, and a ‘round window’ corresponding with it.
1992 Independent 8 Dec. 12/7 It was possible that the pressure change during the dive had damaged the ‘round window’ just behind the eardrum.
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