gear
131gear ratio — The relationship between the number of turns made by a driving gear to complete one full turn of the driven gear. If the driving gear turns four times to turn the driven gear once, the gear ratio would be 4 to 1. In most instances, the gear ratio …
132gear mechanism — noun a mechanism for transmitting motion for some specific purpose (as the steering gear of a vehicle) • Syn: ↑gear • Hypernyms: ↑mechanism • Hyponyms: ↑first gear, ↑first, ↑low gear, ↑ …
