Also especially before a vowel, ophthalm-.

Origin of ophthalmo-

< Greek, combining form of ophthalmós
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for ophthalmo-


before a vowel ophthalm-

combining form
  1. indicating the eye or the eyeballophthalmoscope

Word Origin for ophthalmo-

from Greek ophthalmos eye 1
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

Word Origin and History for ophthalmo-

before vowels ophthalm-, word-forming element meaning "eye," mostly in plural, "the eyes," from Greek ophthalmo-, comb. form of ophthalmos "eye," originally "the seeing," of uncertain origin. Perhaps from ops "eye" (see optic) + a form related to thalamos "inner room, chamber" (see thalamus), giving the whole a sense of "eye and eye socket."

Online Etymology Dictionary, © 2010 Douglas Harper

ophthalmo- in Medicine


  1. Eye; eyeball:ophthalmoscope.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.