from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The study of geometric properties that are invariant under projection.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. a branch of mathematics that investigates those properties of figures that are invariant when projected from a point to a line or plane
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. the geometry of properties that remain invariant under projection
Sorry, no etymologies found.