from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A barrier on the side of a road, to keep vehicles on the road.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a strong protective barrier that is erected around a racetrack or in the middle of a dual-lane highway in order to reduce the likelihood of severe accidents
Sorry, no etymologies found.