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[hem-ee-uh-nop-see-uh] /ˌhɛm i əˈnɒp si ə/
noun, Ophthalmology.
any of several conditions in which there is blindness in half of the visual field, involving one or both eyes.
Also, hemianopia
[hem-ee-uh-noh-pee-uh] /ˌhɛm i əˈnoʊ pi ə/ (Show IPA),
Also called hemiscotosis.
Origin of hemianopsia
First recorded in 1880-85; hemi- + an-1 + -opsia Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for hemianopia


loss of vision in either the whole left or the whole right half of the field of vision Also called hemianopsia (ˌhɛmɪænˈɒpsɪə)
Word Origin
C19: from hemi- + an- + Greek opsis sight
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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hemianopia in Medicine

hemianopsia hem·i·a·nop·si·a (hěm'ē-ə-nŏp'sē-ə) or hem·i·a·no·pi·a (-nō'pē-ə)
Loss of vision in one half of the visual field of one or both eyes.

hem'i·a·nop'tic (-nŏp'tĭk) adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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