Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun Any of various toothlike projections arranged on a wheel rim to engage the links of a chain.
  • noun A cylinder with a toothed rim that engages in the perforations of photographic or movie film to pull it through a camera or projector.

from The Century Dictionary.

  • noun One of a series of projections in a grooved recess round the lower part of a ship's capstan, by which the chain-cable is grasped while heaving up anchor.
  • noun One of the projections on a sprocket-wheel which engage the chain.

from the GNU version of the Collaborative International Dictionary of English.

  • noun A tooth or projection, as on the periphery of a wheel, shaped so as to engage with a chain.
  • noun A sprocket wheel.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun A toothed wheel that enmeshes with a chain or other perforated band.
  • noun usually plural The tooth of such a wheel.
  • noun architecture A flared extension at the base of a sloped roof.
  • noun A placeholder name for an unnamed, unspecified, or hypothetical manufactured good or product.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun roller that has teeth on the rims to pull film or paper through
  • noun thin wheel with teeth that engage with a chain
  • noun tooth on the rim of gear wheel

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[Origin unknown.]

from Wiktionary, Creative Commons Attribution/Share-Alike License

This definition is lacking an etymology or has an incomplete etymology. You can help Wiktionary by giving it a proper etymology.

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Examples

  • There is a drop down menu from the top middle bar of your working window (with a little 'sprocket' symbol).

    Discussions: Message List - root 2010

  • Why, coming home on my bicycle the other day there was an awful row between some infernal 'sprocket' and the 'ball bearings' of the machine, and I never knew before there were such things in the whole concern. "

    Condensed Novels: New Burlesques Bret Harte 1869

  • With the creaking sound of a tired sprocket, I looked up to see Larry Beecher ride by on his ten speed bike for the third time in five minutes; head bent in a slow, yet purposeful pace, pedaled by fifteen dollar tennis shoes, shock white socks stretched with perfection to the knee caps, 70s-style brown sport shorts, yellow mesh tank top, low-worn baseball cap and a pair of mirrored aviator sunglasses.

    Yard Sailing michael dickes 2011

  • The sprocket appears to make a complete rotation for every hour, which would mean that its the minute drive being used.

    Cantena Wall Clock » E-Mail 2009

  • As the socks and sprocket and all that came with them disappeared in earnest down the block, I flipped the plunger in the air, allowing exactly one revolution, grabbed it by its wooden handle and went inside to get dressed for the day in store.

    Yard Sailing michael dickes 2011

  • The clutter of existence falls away pretty easily when you need all your energy just to turn the pedal sprocket one more revolution.

    It's All Downhill From Here Ulysses 2010

  • Meanwhile Julie Lewis continues to change the world, one film sprocket at a time.

    Holly Cara Price: Sustainable, Recyclable, Durable: Purses and Bags Made from Movie Film Holly Cara Price 2011

  • The sprocket appears to make a complete rotation for every hour, which would mean that its the minute drive being used.

    Cantena Wall Clock 2009

  • All you have to do is back off the holding nuts, then use a screwdriver to turn a sprocket in the bar to loosen or tighten the chain as much as you want.

    Craftsman Professional 40cc chain saw JayCassell 2009

  • The clutter of existence falls away pretty easily when you need all your energy just to turn the pedal sprocket one more revolution.

    Archive 2010-04-01 Ulysses 2010

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