WordReference Random House Learner's Dictionary of American English © 2016
ac•cel•er•ate /ækˈsɛləˌreɪt/USA pronunciation
v., -at•ed, -at•ing. WordReference Random House Unabridged Dictionary of American English © 2016
ac•cel•er•a•tion /ækˌsɛləˈreɪʃən/USA pronunciation n. [uncountable]See -celer-.
- to (cause to) develop, progress, or advance faster: [no object]The unemployment rate accelerated.[~ + object]Those policies accelerated unemployment.
- to increase the speed (of): [~ + object]The driver accelerated the car.[no object]The car accelerated.
- to hasten the occurrence of[~ + object]The economic policies accelerated the recession.
(ak sel′ə rāt′), v., -at•ed, -at•ing.
- 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[Mech.]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.
- to move or go faster;
increase in speed.
- to progress or develop faster.
- Latin accelerātus speeded up (past participle of accelerāre), equivalent. to ac- ac- + celer swift + -ātus -ate1
Collins Concise English Dictionary © HarperCollins Publishers::
accelerate /ækˈsɛləˌreɪt/ vb
Etymology: 16th Century: from Latin accelerātus, from accelerāre to go faster, from ad- (intensive) + celerāre to hasten, from celer swiftacˈcelerative, acˈceleratory adj
- 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
'accelerate' also found in these entries: