Library / English Dictionary

    COGWHEEL

    Pronunciation (US): Play  (GB): Play

     I. (noun) 

    Sense 1

    Meaning:

    A toothed wheel that engages another toothed mechanism in order to change the speed or direction of transmitted motionplay

    Synonyms:

    cogwheel; gear; gear wheel; geared wheel

    Classified under:

    Nouns denoting man-made objects

    Hypernyms ("cogwheel" is a kind of...):

    wheel (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))

    Meronyms (parts of "cogwheel"):

    cog; sprocket (tooth on the rim of gear wheel)

    tooth (one of a number of uniform projections on a gear)

    Hyponyms (each of the following is a kind of "cogwheel"):

    bevel gear; pinion and crown wheel; pinion and ring gear (gears that mesh at an angle)

    escape wheel (gear that engages a rocking lever)

    pinion (a gear with a small number of teeth designed to mesh with a larger wheel or rack)

    epicyclic gear; planet gear; planet wheel; planetary gear (an outer gear that revolves about a central sun gear of an epicyclic train)

    rack and pinion (a wheel gear (the pinion) meshes with a toothed rack; converts rotary to reciprocating motion (and vice versa))

    spur gear; spur wheel (gear wheels that mesh in the same plane)

    sun gear (the central gear in an epicyclic train)

    worm gear (gear consisting of a shaft with screw thread (the worm) that meshes with a toothed wheel (the worm wheel); changes the direction of the axis of rotary motion)

    worm wheel (gear with the thread of a worm)

     II. (verb) 

    Sense 1

    Present simple (first person singular and plural, second person singular and plural, third person plural) of the verb cogwheel

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