sight

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sight:

see visionvision,
physiological sense of sight by which the form, color, size, movements, and distance of objects are perceived. Vision in Humans

The human eye functions somewhat like a camera; that is, it receives and focuses light upon a photosensitive receiver, the retina.
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The Columbia Electronic Encyclopedia™ Copyright © 2013, Columbia University Press. Licensed from Columbia University Press. All rights reserved. www.cc.columbia.edu/cu/cup/

sight

[sīt]
(navigation)
(ordnance)
Mechanical or optical device for aiming a firearm or for laying a gun or launcher in position.
To aim at a target or aiming point.
(physiology)
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

sight

i. An optical device for the measurement of drift. See drift indicator.
ii. An aiming device for aiming weapons. It may be a part of a head-up display or a separate unit. It may be fixed, gyro, or electronic. See sight glass (iii).
iii. To make an observation of a heavenly body with a sextant.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved

sight

1. the power or faculty of seeing; perception by the eyes; vision
2. any of various devices or instruments used to assist the eye in making alignments or directional observations, esp such a device used in aiming a gun
3. an observation or alignment made with such a device
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
References in periodicals archive ?
But, I believe that when that is allowed to happen, they lose sight of you (their customer) as well.
"These are all the individual and personal cases and it is important that we should not lose sight of them as we address issues on a truly global and impersonal scale.
African Americans, who may soon relinquish their largest minority status to Latinos, should not lose sight of the primary objective of self-sufficiency, National Urban League President Hugh Price tells columnist William Raspberry of The Washington Post.
Second, we can't lose sight of the fact that we need to do traditional marketing.
It would be a poor trade-off to lose sight of this for the sake of a building, no matter how magnificent.
Virtual" insurance companies may forego large staffs and sprawling corporate headquarters, but they can't afford to lose sight of several key principles, a leader of an Internet-based company that provides workers' compensation coverage told fellow insurers.
Melancon: We're making some progress with the UAA; it's important for the profession and we're not going to lose sight of that.
When that's the case, its sometimes easy to lose sight of the significant role exercises plays in well-being.
"All medical specialties overemphasize diagnoses and sometimes lose sight of the patient," Spitzer asserts.
More importantly he does not lose sight of the trajectory of Petrarch's modernity.
Let's not lose sight of why we are worshiping in the first place.
"Religion is only one factor of many, but it's important not to lose sight of the fact that in the American context, religion has always translated into political action and political conviction," he told Religion News Service.