ˈsəb+ˌ- noun
Etymology: sub- + space
: a space each of whose points is contained in a given space but which does not itself contain all the points of the given space
ˈsəb+ˌ- noun
Etymology: sub- + space
: a space each of whose points is contained in a given space but which does not itself contain all the points of the given space
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012