worm gear
English Thesaurus
1. 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 (noun.artifact)
| hypernym | : | cogwheel, gear, gear wheel, geared wheel, |
| definition | : | a toothed wheel that engages another toothed mechanism in order to change the speed or direction of transmitted motion (noun.artifact) |
| part holonym | : | worm, |
| definition | : | screw thread on a gear with the teeth of a worm wheel or rack (noun.artifact) |
| part holonym | : | worm wheel, |
| definition | : | gear with the thread of a worm (noun.artifact) |
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