ACCELERATOR

/æk.ˈsɛl.ə.ˌɹeɪ.tɚ/ ► audio Scrabble 15 Words With Friends 18

Scrabble letter values: A₁C₃C₃E₁L₁E₁R₁A₁T₁O₁R₁ = 15

Definition

noun a pedal that controls the throttle valve. — synonyms: accelerator_pedal, gas_pedal, gas, throttle, gun
noun a valve that regulates the supply of fuel to the engine. — synonyms: throttle, throttle_valve
noun (chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected. — synonyms: catalyst
noun a scientific instrument that increases the kinetic energy of charged particles. — synonyms: particle_accelerator, atom_smasher