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v. ac·cel·er·at·ed, ac·cel·er·at·ing, ac·cel·er·ates
a. To increase the speed of: accelerated the engine. See Synonyms at speed.
b. Physics To change the velocity of.
2. To cause to occur sooner than expected: accelerated his retirement by a year.
3. To cause to develop or progress more quickly: a substance used to accelerate a fire.
a. To reduce the time required for (an academic course, for example); compress into a shorter period.
b. To make it possible for (a student) to finish an academic course faster than usual.
To move or act faster.
[Latin accelerāre, accelerāt- : ad-, intensive pref.; see ad- + celerāre, to quicken (from celer, swift).]
ac·cel′er·a·to′ry (-ər-ə-tôr′ē) adj.