'Meionite' definitions:

Definition of 'Meionite'

From: GCIDE

Meionite \Mei"o*nite\, n. [Gr. mei`wn smaller. So called in a allusion to the low pyramids of the crystals.] (Min.) A member of the scapolite group, occuring in glassy crystals on Monte Somma, near Naples. [1913 Webster]