from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Either of two coordinates, the radius or the polar angle, that together specify the position of a point in a plane.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. either of two values that locate a point on a plane by its distance from a fixed pole and its angle from a fixed line passing through the pole
Sorry, no etymologies found.