Pronunciation: (sub'spās"), [key]
1. a smaller space within a main area that has been divided or subdivided: The jewelry shop occupies a subspace in the hotel's lobby.
a. a subset of a given space.
b. Also called linear manifold. a subset of a vector space which is itself a vector space.
c. a subset of a topological space, having the relative topology.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.