[mont.mo.ril.lon.ite] n [F, fr. Montmorillon, commune in western France] (1854): a soft clayey mineral that is a hydrous aluminum silicate with considerable capacity for exchanging part of the aluminum for magnesium and bases -- mont.mo.ril.lon.it.ic adj
MONTMORILLONITE
Meaning of MONTMORILLONITE in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012