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backlash

 - 3 dictionary results

back⋅lash

[bak-lash]
–noun
1. a sudden, forceful backward movement; recoil.
2. a strong or violent reaction, as to some social or political change: a backlash of angry feeling among Southern conservatives within the party.
3. Machinery.
a. the space between the thickness of a gear tooth and the width of the space between teeth in the mating gear, designed to allow for a film of lubricant, binding from heat expansion and eccentricity, or manufacturing inaccuracies.
b. play or lost motion between loosely fitting machine parts.
4. Angling. a snarled line on a reel, usually caused by a faulty cast.
–verb (used without object)
5. to make or undergo a backlash.

Origin:
1805–15; back 2 + lash 1
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To backlash
back·lash   (bāk'lāsh')   
n.  
  1. A sudden or violent backward whipping motion.

  2. An antagonistic reaction to a trend, development, or event: "As the backlash against divorce progressed, state legislatures . . . called for a rollback of no-fault divorce laws and even for premarital waiting periods" (Walter Kirn).

  3. A snarl formed in the part of a fishing line that is wound around the reel.

  4. The play resulting from loose connections between gears or other mechanical elements.

back'lash' v.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Word Origin & History

backlash 
1815, of machinery, from back + lash. In metaphoric sense, it is attested from 1921.
Online Etymology Dictionary, © 2001 Douglas Harper
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