noun,pluralmeg·a·ra[meg-er-uh]/ˈmɛg ər ə/, meg·a·rons. (in pre-Hellenic Greek architecture)
a building or semi-independent unit of a building, generally used as a living apartment and typically having a square or broadly rectangular principal chamber with a porch, often of columns in antis, and sometimes an antichamber or other small compartments.
Origin of megaron
First recorded in 1875–80,megaron is from the Greek word mégaron (in Homer) the principal living quarters of a palace