MOON

I. noun Etymology: Middle English mone, from Old English mōna; akin to Old High German māno ~, Latin mensis month, Greek mēn month, mēnē ~ Date: before 12th century 1. the earth's natural satellite that shines by the sun's reflected light, revolves about the earth from west to east in about 29 1/2 days with reference to the sun or about 27 1/3 days with reference to the stars, and has a diameter of 2160 miles (3475 kilometers), a mean distance from the earth of about 238,900 miles (384,400 kilometers), and a mass about one eightieth that of the earth, one complete ~ cycle consisting of four phases, satellite 2, an indefinite usually extended period of time , ~light , something that resembles a ~: as, a highly translucent spot on old porcelain, lunule , naked buttocks, something impossible or inaccessible , ~like adjective II. verb Date: 1836 transitive verb to spend in idle reverie ; dream , to expose one's naked buttocks to, intransitive verb to spend time in idle reverie ; behave abstractedly