the Greek goddess of the moon.
Also, Selena. a female given name.
the Greek goddess of the moon Roman counterpart Luna
noun 1. a river in N central Asia, flowing E and N through the NW Mongolian People’s Republic through the Buryat Autonomous Republic in the SE Russian Federation to Lake Baikal. About 700 miles (1125 km) long.
adjective, Chemistry. 1. of or containing selenium, especially in the hexavalent state. adjective 1. of or containing selenium, esp in the hexavalent state
noun, Chemistry. 1. a crystalline, water-soluble, strong, corrosive, dibasic acid, H 2 SeO 4 , resembling sulfuric acid. selenic acid noun 1. a colourless crystalline soluble strong dibasic acid analogous to sulphuric acid. Formula: H2SeO4
noun, Chemistry. 1. any compound in which bivalent selenium is combined with a positive element, as potassium selenide, K 2 Se, or with a group.