noun Etymology: smectis fuller's earth, modification of Greek smēktris kind of fuller's earth, from smēchein to clean Date: 1811 montmorillonite , smectitic adjective
SMECTITE
Meaning of SMECTITE in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012