a combining form occurring in compound words denoting a condition of sight or of the visual organs: diplopia; hemeralopia; myopia.

Nearby words

  1. -onic,
  2. -onium,
  3. -ont,
  4. -onym,
  5. -oon,
  6. -opsia,
  7. -opsis,
  8. -opsy,
  9. -opy,
  10. -or

Also -opsia.

Origin of -opia

< Greek -ōpia, akin to ōpḗ view, look, ṓps eye, face

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

British Dictionary definitions for -opia


n combining form

indicating a visual defect or conditionmyopia
Derived Forms-opic, adj combining form

Word Origin for -opia

from Greek, from ōps eye

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 -opia



A visual condition or defect of a specified kind:anisometropia.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.