乌咔咔, Selene is the ancient Greek goddess of the moon Luna is the ancient Roman goddess of the moon. "Selenic" is an adjective and a synonym for "lunar" They both mean.....of, relating to, or like the moon. Lunar is commonly used when referring to the moon; selenic is rare. Selenic also means.....of, relating to, or containing the element "selenium". The element was named after the moon when discovered in 1817 by the scientist Berzelius.