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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 collisions
  • Radiation could only be generated in collisions between bubble walls.
  • These collisions then induce condensations of these clouds into new stars.
  • Typically, players will avoid collisions to a degree of mutual tolerance.
  • Head on collisions are avoided by vessels both turning to starboard.
  • The casque would help protect the skull from such collisions.
  • collisions with ships are an additional major cause of fin whale mortality.
British Dictionary definitions for collisions

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 collisions

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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12
16
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