HyperDic: third_dimension

English > 1 sense of the expression *third dimension*:
NOUN	attribute	third dimension	the dimension whereby a solid object differs from a two-dimensional drawing of it

English > *third dimension*: 1 sense > noun 1, attribute
Meaning	The dimension whereby a solid object differs from a two-dimensional drawing of it.
Broader	dimension	The magnitude of something in a particular direction (especially length or width or height)