| 单词 | optic disc |
| 释义 | optic discnouna small oval-shaped area on the retina marking the site of entrance into the eyeball of the optic nerveSee blind spot (def. 1) Words nearby optic discoptic center, optic chiasm, optic chiasma, optic cup, optic decussation, optic disc, optic disk, optic foramen, optician, opticianry, opticist Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 |
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