Main Entry: sel·e·nite

Pronunciation: \ˈse-lə-ˌnīt\

Function: noun

Etymology: Middle English selinete, from Latin selenites, from Greek selēnitēs (lithos), literally, stone of the moon, from selēnē; from the belief that it waxed and waned with the moon

Date: 15th century

: a variety of gypsum occurring in transparent crystals or crystalline masses