Reference meaning
accelerator
Last updated
a pedal that controls the throttle valve
Related source terms
Other meanings
2. noun
a valve that regulates the supply of fuel to the engine
3. noun
(chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected
4. noun
a scientific instrument that increases the kinetic energy of charged particles
Source and scope
This definition is reproduced from Princeton WordNet 3.0, sense 02670683-n, under the WordNet 3.0 License. It has not yet received VocabularyBase editorial review. Read the source and license details.