worm gear worm fish • worm-geared · · · Info · Definitions · Characters · · worm gear · · Text Common · · Latin · · Scripts 9 · · Length 2 · · Syllables Definitions · · · (noun) 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. Synonyms: worm gear. · · Noun Definition 1 Characters · · space U+0020 a latin small letter a U+0061 e latin small letter e U+0065 g latin small letter g U+0067 m latin small letter m U+006D o latin small letter o U+006F r latin small letter r U+0072 w latin small letter w U+0077