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[ak-sel-uh-reyt] /ækˈsɛl əˌreɪt/
verb (used with object), accelerated, accelerating.
to cause faster or greater activity, development, progress, advancement, etc., in:
to accelerate economic growth.
to hasten the occurrence of:
to accelerate the fall of a government.
Mechanics. to change the velocity of (a body) or the rate of (motion); cause to undergo acceleration.
to reduce the time required for (a course of study) by intensifying the work, eliminating detail, etc.
verb (used without object), accelerated, accelerating.
to move or go faster; increase in speed.
to progress or develop faster.
1515-25; < Latin accelerātus speeded up (past participle of accelerāre), equivalent to ac- ac- + celer swift + -ātus -ate1
Related forms
accelerable, adjective
acceleratedly, adverb
overaccelerate, verb, overaccelerated, overaccelerating.
reaccelerate, verb, reaccelerated, reaccelerating.
self-accelerating, adjective
unaccelerated, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for accelerating
  • Yet his service consisted rather in accelerating the popular current than in setting it in motion.
  • And when one fish starts accelerating towards a prey fish, other members of the group join in the hunt.
  • Globalization may be accelerating, they say, but don't pretend that trade routes are something new.
  • The universe isn't accelerating, but light is slowing down.
  • Less obvious is their role in accelerating the crash.
  • People showed me mobile-phone footage of armored trucks accelerating into people and held up shotgun and bullet casings.
  • Less obvious is their role in accelerating the crash.
  • But some scholars believe that a disintegration of anthropology may be accelerating today.
  • So you may well use your surplus to buy a house before accelerating payments on your loans.
  • Such procedures are intensive, initially, then decline in frequency at an accelerating rate.
British Dictionary definitions for accelerating


to go, occur, or cause to go or occur more quickly; speed up
(transitive) to cause to happen sooner than expected
(transitive) to increase the velocity of (a body, reaction, etc); cause acceleration
Derived Forms
accelerable, adjective
accelerative, acceleratory, adjective
Word Origin
C16: from Latin accelerātus, from accelerāre to go faster, from ad- (intensive) + celerāre to hasten, from celer swift
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 accelerating



1520s, from Latin acceleratus, past participle of accelerare "to hasten, to quicken," from ad- "to" (see ad-) + celerare "hasten," from celer "swift" (see celerity). Related: Accelerated; accelerating.

Online Etymology Dictionary, © 2010 Douglas Harper
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