selenite

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selenite¹

  • /ˈsɛlɪnaɪt/

Where it comes from

From Ancient Greek σελήνη (selḗnē, “moon”) + -ite; the chemistry sense comes via the name of the element selenium.

noun selenites

  1. countable, uncountable A soft, glassy form of gypsum (chemical formula CaSO₄·2H₂O). I followed them to my study, and found lying on my writing-table still, with the selenite paper-weight upon it, the sheet of work I had left on the afternoon of the opening of the cylinder.

    Similar: satin spar

  2. countable, uncountable The anion SeO₃²⁻ derived from selenous acid; any salt or ester of selenous acid.

Selenite²

Where it comes from

From Ancient Greek σεληνίτης (selēnítēs), from σελήνη (selḗnē, “moon”) + -ίτης (-ítēs, “belonging to”). By surface analysis, Selen(e) (“the Moon”) + -ite.

noun Selenites

  1. Synonym of Lunarian (“inhabitant of the Moon”). My first impression was of some clumsy quadruped with lowered head. Then I perceived it was the slender pinched body and short and extremely attenuated bandy legs of a Selenite, with his head depressed between his shoulders.

    Similar: Lunarian

adjective

  1. not comparable Pertaining to the inhabitants of Luna (Lunarians/Selenites). a Selenite colony

Translations

Every language

noun gypsum

Españolselenita
Portuguêsselenita, selenite
Françaissélénite
DeutschSelenit, Marienglas, Frauenglas, Spiegelstein
Italianoselenite

noun from selenous acid

Españolselenito
Françaissélénite
DeutschSelenit
Italianoselenito

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Cite this
MLA

"selenite." Wiktionary, via Micwyn, micwyn.com/word/selenite. Accessed 6 Nov. 2026.

APA

selenite. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/selenite

Chicago

"selenite." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/selenite.

BibTeX
@misc{selenite_2026,
  title = {selenite},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/selenite},
  urldate = {2026-11-06}
}