— topologic /top'euh loj"ik/ , — topological , adj. — topologically , adv. — topologist , n.
/teuh pol"euh jee/ , n. , pl. topologies for 3 . Math.
1. the study of those properties of geometric forms that remain invariant under certain transformations, as bending or stretching.
2. Also called point set topology . the study of limits in sets considered as collections of points.
3. a collection of open sets making a given set a topological space.
[ 1650-60; TOPO- + -LOGY ]