Definitions

1. noun

a device or mechanism that increases the power or speed of a machine, vehicle, or other system, or something that accelerates a process or activity

“The sports car’s accelerator pedal allowed for rapid acceleration.”

2. noun

a substance that accelerates a chemical reaction, such as a catalyst

“The accelerator was added to the chemical mixture to speed up the reaction.”

3. verb

to increase the speed or power of something, or to speed up a process or activity

“The new engine would accelerate the car’s performance.”

4. verb

to cause or accelerate a chemical reaction

“The acid will accelerate the reaction when added to the mixture.”