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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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British Dictionary definitions for anti-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 anti-collision

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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4
5
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