Selenite (noun)
1
(science fiction) An inhabitant of the Moon.
Selenite (adjective)
1
(science fiction) Pertaining to the inhabitants of Luna (Lunarians/Selenites).
selenite (noun)
1
(mineralogy) A soft, glassy form of gypsum (chemical formula CaSO4·2H2O).
2
(inorganic chemistry) The anion SeO32− derived from selenous acid; any salt or ester of selenous acid.