"daryâ-ye mâh" (#)
Fr.: mer lunaire
An area on the surface of the → Moon that appears darker and smoother than its surroundings. Once thought to be seas, lunar maria are now known to be basaltic basins created by volcanic → lava floods; plural maria.
→ lunar; L. mare "sea," plural form maria, because Galileo thought the dark featureless areas on the Moon were → seas.