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Parent Categories

entity go
that which is perceived or known or inferred to have its own distinct existence (living or nonliving)

physical entity go
an entity that has physical existence

object, physical object go
a tangible and visible entity

whole, unit go
an assemblage of parts that is regarded as a single entity

artifact, artefact go
a man-made object taken as a whole

instrumentation, instrumentality go
an artifact (or system of artifacts) that is instrumental in accomplishing some end

device go
an instrumentality invented for a particular purpose

mechanism go
device consisting of a piece of machinery

mechanical device go
mechanism consisting of a device that works on mechanical principles

machine, simple machine go
a device for overcoming resistance at one point by applying force at some other point

wheel go
a simple machine consisting of a circular frame with spokes (or a solid disc) that can rotate on a shaft or axle (as in vehicles or other machines)

gear, gear wheel, geared wheel, cogwheel
a toothed wheel that engages another toothed mechanism in order to change the speed or direction of transmitted motion

noun.artifact

9 Subcategories

bevel gear, pinion and crown wheel, pinion and ring gear go
gears that mesh at an angle
escape wheel go
gear that engages a rocking lever
pinion go
a gear with a small number of teeth designed to mesh with a larger wheel or rack
planetary gear, epicyclic gear, planet wheel, planet gear go
an outer gear that revolves about a central sun gear of an epicyclic train
rack and pinion go
a wheel gear (the pinion) meshes with a toothed rack
spur gear, spur wheel go
gear wheels that mesh in the same plane
sun gear go
the central gear in an epicyclic train
worm gear go
gear consisting of a shaft with screw thread (the worm) that meshes with a toothed wheel (the worm wheel)
worm wheel go
gear with the thread of a worm