Definition of Accelerator

1. Noun. A pedal that controls the throttle valve. "He stepped on the gas"

Exact synonyms: Accelerator Pedal, Gas, Gas Pedal, Gun, Throttle
Group relationships: Aeroplane, Airplane, Plane, Auto, Automobile, Car, Machine, Motorcar
Generic synonyms: Foot Lever, Foot Pedal, Pedal, Treadle
Derivative terms: Accelerate, Throttle

2. Noun. A valve that regulates the supply of fuel to the engine.
Exact synonyms: Throttle, Throttle Valve
Group relationships: Fuel System
Generic synonyms: Valve
Derivative terms: Accelerate, Throttle

3. Noun. (chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected.
Exact synonyms: Catalyst
Category relationships: Chemical Science, Chemistry
Generic synonyms: Activator
Specialized synonyms: Biocatalyst, Enzyme, Platinum Black
Antonyms: Anticatalyst
Derivative terms: Catalyze

4. Noun. A scientific instrument that increases the kinetic energy of charged particles.

Definition of Accelerator

1. n. One who, or that which, accelerates. Also as an adj.; as, accelerator nerves.

Definition of Accelerator

1. [n -S]

Medical Definition of Accelerator

1. 1. Anything that increases rapidity of action or function. 2. In physiology, a nerve, muscle, or substance that quickens movement or response. 3. A catalytic agent used to hasten a chemical reaction. 4. In nuclear physics, a device that accelerates charged particles (e.g., protons) to high speed in order to produce nuclear reactions in a target, often for the production of radionuclides or for radiation therapy. Synonym: accelerant. Origin: L. Accelerans, pres. P. Of ac-celero, to hasten, fr. Celer, swift (05 Mar 2000)

Lexicographical Neighbors of Accelerator

accelerated hypertension
accelerated idioventricular rhythm
accelerated phase of leukaemia
accelerated reaction
accelerated rejection
accelerates
accelerating
acceleratingly
acceleration
acceleration
accelerations
acceleration phase
acceleration unit
accelerative
accelerator (current term)
accelerator (current term)
accelerators
acceleratory
accelerator factor
accelerator factor
accelerator fibres
accelerator globulin
accelerator nerves
accelerator pedal
accelerin
accelerograph
accelerometer
accelerometer
accelerometers
accend

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