˜yÐÄvlog

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orthoscope

[ awr-thuh-skohp ]

noun

Ophthalmology.
  1. (formerly) an instrument for examining the internal structures of the eye through a layer of water that neutralizes the refraction of the cornea.

orthoscope

/ ˈɔËθəʊˌ²õ°ìəʊ±è /

noun

  1. obsolete.
    med a 19th-century instrument for viewing the fundus of the eye through a layer of water, which eliminates distortion caused by the cornea
“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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˜yÐÄvlog History and Origins

Origin of orthoscope1

First recorded in 1890–95; ortho- + -scope

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