accelerators

noun
  1. 1

    One who, or that which, accelerates.

  2. 2

    A device for causing acceleration.

  3. 3

    A substance which speeds up chemical reactions.

  4. 4

    A pedal causing the vehicle to accelerate when it is pressed.

  5. 5

    A chemical that reduces development time.

  6. 6

    A device that accelerates charged subatomic particles.

  7. 7

    A muscle or nerve that speed the performance of an action.

  8. 8

    An accelerator key.

  9. 9

    A light van to take mails between a post office and a railway station.

Source: https://en.wiktionary.org/wiki/accelerator, https://en.wiktionary.org/wiki/accelerators