[ op-ti-kuh l ]
/ ˈɒp tɪ kəl /



opticals. optical effects.

Nearby words

  1. optic papilla,
  2. optic radiation,
  3. optic thalamus,
  4. optic tract,
  5. optic vesicle,
  6. optical aberration,
  7. optical activity,
  8. optical allachesthesia,
  9. optical art,
  10. optical astronomy

Origin of optical

First recorded in 1560–70; optic + -al1

Related forms

optical effects

plural noun Movies, Television.

special visual effects, as the wipe or dissolve, created in the camera or especially in a film laboratory by technicians using complex optical and electronic equipment.
Also called opticals.

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

Examples from the Web for optical

British Dictionary definitions for optical


/ (ˈɒptɪkəl) /


of, relating to, producing, or involving light
of or relating to the eye or to the sense of sight; optic
(esp of a lens) aiding vision or correcting a visual disorder
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 optical



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

Online Etymology Dictionary, © 2010 Douglas Harper

Science definitions for optical


[ ŏptĭ-kəl ]

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