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单词 external ear
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external ear
external ear n. [after post-classical Latin auris externa (1600 or earlier); compare French oreille externe (1612 or earlier)] the skin-covered cartilaginous flap (pinna or auricle) that is the visible part of the ear in humans and most other mammals; (also) the pinna together with the ear canal (external auditory meatus).
ΚΠ
1615 H. Crooke Μικροκοσμογραϕια 577/1 (caption) Figure 1. sheweth the whole externall eare, with a part of the Temple bone.
1771 T. Pennant Synopsis Quadrupeds 276 Earless [Marmot]... M[armot] without external ears, having only a small orifice on each side the head.
1860 J. Tyndall Glaciers of Alps 225 These aërial waves enter the external ear, meet..the so-called tympanic membrane.
1890 J. S. Billings National Med. Dict. I. 370/2 Darwinian tubercle.., eminence on edge of helix of external ear, believed to correspond with end of pointed ear of apes.
2000 Herbs for Health May 64/1 Otitis externa , external ear infection, is one of the most common problems veterinarians see in their practices today.
extracted from externaladj.n.
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