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collision

[kuh-lizh-uh n] /kəˈlɪʒ ən/
noun
1.
the act of colliding; a coming violently into contact; crash:
the collision of two airplanes.
2.
a clash; conflict:
a collision of purposes.
3.
Physics. the meeting of particles or of bodies in which each exerts a force upon the other, causing the exchange of energy or momentum.
Origin of collision
late Middle English
1400-1450
1400-50; late Middle English < Late Latin collīsiōn- (stem of collīsiō), equivalent to collīs(us) (past participle of collīdere to collide) + -iōn- -ion
Related forms
collisional, adjective
anticollision, adjective
Can be confused
collision, collusion.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for collision
  • They were two locomotives chugging toward a collision.
  • The avoidance of a political collision has helped economic confidence.
  • Scientists predict it may be so close that gravity could cause a catastrophic collision.
  • Astronomers are watching what they believe is a remarkable collision between two asteroids deep in space.
  • The slow but violent collision of these three plates produces spectacular earthquakes, tsunamis, and eruptions.
  • Elastic collisions: the kinetic energy before and after the collision must be conserved.
  • Anything that helps occupants survive a collision with the ground is therefore to be welcomed.
  • In this composite image, two clusters of galaxies are seen after a collision.
  • Scientists have spotted the wreckage from a spectacular collision between two planets deep in space.
  • In the case of my meeting the donkey, the collision was low-impact.
British Dictionary definitions for collision

collision

/kəˈlɪʒən/
noun
1.
a violent impact of moving objects; crash
2.
the conflict of opposed ideas, wishes, attitudes, etc: a collision of interests
3.
(physics) an event in which two or more bodies or particles come together with a resulting change of direction and, normally, energy
Word Origin
C15: from Late Latin collīsiō from Latin collīdere to collide
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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Word Origin and History for collision
n.

early 15c., from Middle French collision (15c.), from Latin collisionem (nominative collisio) "a dashing together," noun of action from collidere (see collide).

Online Etymology Dictionary, © 2010 Douglas Harper
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collision in Technology


1. When two hosts transmit on a network at once causing their packets to corrupt each other.
See collision detection.
2. hash collision.
(1995-01-06)

The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
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