of, relating to, or for the eyes: ocular movements.
of the nature of an eye: an ocular organ.
performed or perceived by the eye or eyesight.


Optics. eyepiece.

Origin of ocular

1565–75; < Latin oculāris, equivalent to ocul(us) eye + -āris -ar1
Related formsoc·u·lar·ly, adverbpre·oc·u·lar, adjectivesub·oc·u·lar, adjectivesub·oc·u·lar·ly, adverbsu·per·oc·u·lar, adjectivesu·per·oc·u·lar·ly, adverbtrans·oc·u·lar, adjectiveun·oc·u·lar, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Related Words for ocular

visual, eye, optic, sight, visible, ophthalmic

Examples from the Web for ocular

Contemporary Examples of ocular

Historical Examples of ocular

British Dictionary definitions for ocular



of or relating to the eye


another name for eyepiece
Derived Formsocularly, adverb

Word Origin for ocular

C16: from Latin oculāris from oculus 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

Word Origin and History for ocular

c.1500, from Late Latin ocularis "of the eyes," from Latin oculus "an eye," from PIE root *okw- "to see" (cf. Gothic augo, Old English eage "eye;" see eye (n.)). As a noun, 1835, from the adjective.

Online Etymology Dictionary, © 2010 Douglas Harper

ocular in Medicine




Of or relating to the eye or the sense of sight.
Resembling the eye in form or function.


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

ocular in Science




Of or relating to the eye or the sense of vision.


The eyepiece of a microscope, telescope, or other optical instrument.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.