accelerator.
One who, or that which, accelerates.
Meaning & usage
One who, or that which, accelerates.
The Second World War is said to have been a great accelerator for many scientific findings.
A device for causing acceleration.
A substance which speeds up chemical reactions.
A pedal causing the vehicle to accelerate when it is pressed.
As soon as you get onto the slipway, push the accelerator.
A chemical that reduces development time.
A device that accelerates charged subatomic particles; a particle accelerator.
A muscle or nerve that speeds the performance of an action.
An accelerator key.
A computer component using dedicated hardware to accelerate the processing and display of graphics.
A light van to take mails between a post office and a railway station.
A mentoring program for startup companies.
Where this word comes from
Etymology tree Proto-Indo-European *h₂éd Proto-Italic *ad Proto-Italic *ad- Latin ad- Proto-Indo-European *kel-der. Latin celer Proto-Indo-European *-h₂ Proto-Indo-European *-éh₂ Proto-Indo-European *-yéti Proto-Indo-European *-eh₂yéti Proto-Indo-European *-h₂tiinflu. Proto-Italic *-ājō Proto-Italic *-āō Latin -ō Latin celerō Latin accelerō Latin accelerātuslbor. ▲ Latin accelerō Proto-Indo-European *-tis Proto-Indo-European *-Hō Proto-Indo-European *-tiHō Proto-Italic *-tiō Latin -tiō Latin accelerātiōder. English accelerationbf. English accelerate Proto-Indo-European *-tōr Proto-Italic *-tōr Latin -tor Latin -ātor Old French -eorbor. Middle English -our ▲ Latin -torlbor. English -or English accelerator * First attested in 1611. * (motor vehicle): First attested in 1900. * accelerate + -or
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.