acceleratornounmasculine/ɐ.sɨ.le.ɾɐˈðɔɾ/mediuma·ce·le·ra·dorPortuguesEnglishEspanolFrancaisDefinitionA device that increases speed or intensity of something.The car's accelerator was stuck.He pressed the accelerator to overtake.synthrottlegas pedalEtymologyDo latim 'accelerator'Related wordsaceleraraceleramentoacelerador de partículas