Homaloid

{ Hom″a‐loid (hŏm″ȧ‐loid), Hom′a‐loid″al (–loid″al), } a. [Gr. ομαλὅσ 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.