Definition of accelerator
- a graphics accelerator
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'accelerator.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
: a pedal in a vehicle that is pressed down to make the vehicle go faster
: a machine that causes charged particles (such as electrons and protons) to move at extremely high speeds
What made you want to look up accelerator? Please tell us where you read or heard it (including the quote, if possible).
of yeast or being unsettled or frivolous
Get Word of the Day daily email!
Merriam-Webster's New Words Quiz—Fall 2017 Edition!
Test your visual vocabulary with our 10-question challenge!TAKE THE QUIZ
Test Your Knowledge - and learn some interesting things along the way.TAKE THE QUIZ