• synonyms


[op-ti-kuh l]
See more synonyms for optical on Thesaurus.com
  1. of, relating to, or applying optics or the principles of optics.
  2. constructed to assist sight or to correct defects in vision.
  3. of or relating to sight or vision; visual.
  4. of or relating to the eye.
  5. of or relating to an optician or opticians or to their products, especially eyeglasses: an optical service.
  6. dealing with or skilled in optics.
Show More
  1. opticals. optical effects.
Show More

Origin of optical

First recorded in 1560–70; optic + -al1
Related formsop·ti·cal·ly, adverbnon·op·ti·cal, adjectivenon·op·ti·cal·ly, adverbsub·op·ti·cal, adjectivesub·op·ti·cal·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for non-optical

Historical Examples

  • The vision of our dreams—to keep to vision alone for greater simplicity—is non-optical vision.

    Human Personality and its Survival of Bodily Death

    Frederick W. H. Myers

British Dictionary definitions for non-optical


  1. of, relating to, producing, or involving light
  2. of or relating to the eye or to the sense of sight; optic
  3. (esp of a lens) aiding vision or correcting a visual disorder
Show More
Derived Formsoptically, adverb
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 non-optical



1560s, from optic + -al (1). Of abstract art, from 1964. Related: Optically.

Show More
Online Etymology Dictionary, © 2010 Douglas Harper

non-optical in Science


  1. Relating to vision or the eyes.
  2. Relating to optics.
  3. Relating to or using visible light.
Show More
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.