(topology) A topological space such that any open cover of the space has a countable subcover.

plural of air space

A non-breaking space.

plural of white space

plural of space ship

(music) A subgenre of rock music, characterised by long psychedelic instrumental passages and lyrics dealing with science fiction or outer space.

(physics) The Newtonian concept of an unchanging and unchangeable reference system of spatial (and temporal) coordinates that is the same for all observers

A rocket vehicle capable of reaching space (typically from the ground).

plural of space charge

plural of space case