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tunnel vision

a drastically narrowed field of vision, as in looking through a tube, symptomatic of retinitis pigmentosa.
an extremely narrow or prejudiced outlook; narrow-mindedness.
Origin of tunnel vision
Related forms
tunnel-visioned, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2016.
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British Dictionary definitions for tunnel-vision

tunnel vision

a condition in which peripheral vision is greatly restricted
narrowness of viewpoint resulting from concentration on a single idea, opinion, etc, to the exclusion of others
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
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tunnel-vision in Medicine

tunnel vision n.
Vision in which the visual field is severely constricted.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Slang definitions & phrases for tunnel-vision

tune up

verb phrase

To bring something, esp a car motor, to its best state of effectiveness; tinker with to improve: tuning up for the race at Santa Ana

[1901+; fr the process of tuning a musical instrument, suggested by the fact that the performance of motors can be gauged by their sound]

The Dictionary of American Slang, Fourth Edition by Barbara Ann Kipfer, PhD. and Robert L. Chapman, Ph.D.
Copyright (C) 2007 by HarperCollins Publishers.
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