Dictionary entry details
• ACCELERATOR (noun)
Meaning:
A pedal that controls the throttle valve
Classified under:
Nouns denoting man-made objects
Synonyms:
gas pedal; accelerator pedal; accelerator; throttle; gas; gun
Context example:
he stepped on the gas
Hypernyms ("accelerator" is a kind of...):
foot lever; foot pedal; pedal; treadle (a lever that is operated with the foot)
Holonyms ("accelerator" is a part of...):
aeroplane; airplane; plane (an aircraft that has a fixed wing and is powered by propellers or jets)
auto; automobile; car; machine; motorcar (a motor vehicle with four wheels; usually propelled by an internal combustion engine)
Meaning:
A valve that regulates the supply of fuel to the engine
Classified under:
Nouns denoting man-made objects
Synonyms:
throttle; throttle valve; accelerator
Hypernyms ("accelerator" is a kind of...):
valve (control consisting of a mechanical device for controlling the flow of a fluid)
Holonyms ("accelerator" is a part of...):
fuel system (equipment in a motor vehicle or aircraft that delivers fuel to the engine)
Meaning:
(chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected
Classified under:
Nouns denoting substances
Synonyms:
catalyst; accelerator
Hypernyms ("accelerator" is a kind of...):
activator ((biology) any agency bringing about activation; a molecule that increases the activity of an enzyme or a protein that increases the production of a gene product in DNA transcription)
Domain category:
chemical science; chemistry (the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions)
Hyponyms (each of the following is a kind of "accelerator"):
biocatalyst (a biochemical catalyst such as an enzyme)
enzyme (any of several complex proteins that are produced by cells and act as catalysts in specific biochemical reactions)
platinum black (a fine black powder of platinum; used as a catalyst in chemical reactions)
Meaning:
A scientific instrument that increases the kinetic energy of charged particles
Classified under:
Nouns denoting man-made objects
Synonyms:
atom smasher; particle accelerator; accelerator
Hypernyms ("accelerator" is a kind of...):
scientific instrument (an instrument used by scientists)
Meronyms (parts of "accelerator"):
storage ring (container consisting of a set of magnets set in a doughnut-shaped ring around which charged particles from an accelerator can be kept circulating until they are used)
Hyponyms (each of the following is a kind of "accelerator"):
linac; linear accelerator (ions are accelerated along a linear path by voltage differences on electrodes along the path)
cyclotron (an accelerator that imparts energies of several million electron-volts to rapidly moving particles)
collider (an accelerator in which two beams of particles are forced to collide head on)
Cockcroft and Walton accelerator; Cockcroft and Walton voltage multiplier; Cockcroft-Walton accelerator; Cockcroft-Walton voltage multiplier (a high-voltage machine in which rectifiers charge capacitors that discharge and drive charged particles through an accelerating tube)
charge-exchange accelerator (an accelerator in which high-energy ions escape from plasma following charge exchange)
betatron; induction accelerator (accelerates a continuous beam of electrons to high speeds by means of the electric field produced by changing magnetic flux)
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