orthoscope

[ awr-thuh-skohp ]

/ ˈɔr θəˌskoʊp /

noun Ophthalmology.

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

Words nearby orthoscope

orthoptics, orthoptist, orthopyroxene, orthorexia, orthorhombic, orthoscope, orthoscopic, orthoscopy, orthoselection, orthosis, orthostat

Origin of orthoscope

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

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for orthoscope

orthoscope

/ (ˈɔːθəʊˌskəʊp) /

noun

med obsolete 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

Medicine definitions for orthoscope

orthoscope

[ ôr′thə-skōp′ ]

n.

An instrument used to examine the eye that eliminates corneal refraction by means of a layer of water.