aeroplane, airplane, plane - an aircraft that has a fixed wing and is powered by propellers or jets; "the flight was delayed due to trouble with the airplane"

auto, automobile, car, motorcar, machine - 4-wheeled motor vehicle; usually propelled by an internal combustion engine; "he needs a car to get to work"

foot lever, foot pedal, treadle, pedal - a lever that is operated with the foot

fuel system - equipment in a motor vehicle or aircraft that delivers fuel to the engine

valve - control consisting of a mechanical device for controlling the flow of a fluid

chemical science, chemistry - the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions

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

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

betatron, induction accelerator - accelerates a continuous beam of electrons to high speeds by means of the electric field produced by changing magnetic flux

charge-exchange accelerator - an accelerator in which high-energy ions escape from plasma following charge exchange

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

collider - an accelerator in which two beams of particles are forced to collide head on

cyclotron - an accelerator that imparts energies of several million electron-volts to rapidly moving particles

linac, linear accelerator - ions are accelerated along a linear path by voltage differences on electrodes along the path

scientific instrument - an instrument used by scientists

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