- having only one eye.
- of, relating to, or for the use of only one eye: a monocular microscope.
- a monocular instrument or device.
Origin of monocular
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for monocular
The little microscope was an excellent one, though only a monocular.Badge of Infamy
Lester del Rey
Nystagmus occasionally occurs in monocular fixation (with exclusion of the other eye).Schweigger on Squint
These are the retinal field of vision, the monocular field, and the binocular field.Visual Illusions
Even the doctor, himself a hardened man of the sea, showed a brilliant spark of emotion behind his monocular attic window.Plum Pudding
Monocular, mon-ok′ū-lar, adj. with one eye only: fitted only for one eye at a time.
- having to do with or using only one eye
- a device for use with one eye, such as a field glass
C17: from Late Latin monoculus one-eyed
Word Origin and History for monocular
Online Etymology Dictionary, © 2010 Douglas Harper
- Having or affecting one eye only.
- Having a single eyepiece, as certain microscopes or other optical instruments.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.