LATIN DICTIONARYLexicon Latīnum
noun

sĕlēnītis

Meaning

  1. crystalline gypsum

sĕlēnītis, ĭdis, f., or sĕlēnītes, ae, m., = σεληνῖτις,
I. crystalline gypsum, selenite. Form selenitis, Plin. 37, 10, 67, § 181; form selenites, Sol. 37, 31; Aug. Civ. Dei, 21, 5; Isid. 16, 4, 6.

Quick answers

What does sĕlēnītis mean in Latin?
sĕlēnītis, a noun, means “crystalline gypsum”.