'Hydromagnesite' definitions:
Definition of 'Hydromagnesite'
From: GCIDE
- Hydromagnesite \Hy`dro*mag"ne*site\ (h[imac]`dr[-o]*m[a^]g"n[-e]*s[imac]t), n. [Hydro-, 1 + magnesite.] (Min.) A hydrous carbonate of magnesia occurring in white, earthy, amorphous masses. [1913 Webster]