subspace

[ suhb-speys ]

noun

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.

2. Mathematics.
   1. a subset of a given space.
   2. Also called linear manifold. a subset of a vector space which is itself a vector space.
   3. a subset of a topological space, having the relative topology.

Word History and Origins

Origin of subspace¹

First recorded in 1925–30; sub- + space