acelerador

Etymology
From.

Noun

 * 1) accelerator a device for causing acceleration
 * 2) accelerator pedal
 * 1) accelerator pedal

Adjective

 * 1) accelerating which causes something to accelerate

Etymology
From.

Adjective

 * 1) accelerating that causes acceleration

Noun

 * 1) accelerator device for causing acceleration
 * 2) accelerator pedal
 * 3)  accelerator substance that speeds up chemical reactions