Homaloidal

{ Hom"a*loid (hŏm"ȧ*loid), Hom`a*loid"al (-loid"al), } a. [Gr. "omalo`s even + -oid.] (Geom.) Flat; even; -- a term applied to surfaces and to spaces, whether real or imagined, in which the definitions, axioms, and postulates of Euclid respecting parallel straight lines are assumed to hold true.