[meg-uh-ron] 
[-er-uh] , -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. |
| meg·a·ron (měg'ə-rŏn') n. pl. meg·a·ra (-ər-ə) The main hall or central room of a palace or house, especially of Mycenaean Greece, having a pillared porch and a more or less central hearth. [Greek.] |