from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A line that bisects something into equal parts.
- n. A painted line running along the center of a road or highway that divides it into two sections for traffic moving in opposite directions, or, in the case of a divided highway, for lines of traffic moving in the same direction at different speeds.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A line that divides a shape into equal pieces.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a line that bisects a plane figure
Sorry, no etymologies found.