'Magnesite' definitions:
Definition of 'magnesite'
From: WordNet
noun
A white mineral consisting of magnesium carbonate; a source of magnesium
Definition of 'Magnesite'
From: GCIDE
- Magnesite \Mag"ne*site\, n. [Cf. F. magn['e]site.] (Min.) Native magnesium carbonate occurring in white compact or granular masses, and also in rhombohedral crystals. [1913 Webster]