from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A mechanical transmission which shifts gears automatically in response to speed and/or load, rather than requiring the operator to do so manually; an automatic gearbox.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a transmission that automatically changes the gears according to the speed of the car
Sorry, no etymologies found.