bentonite noun.
['bɛntǝnʌɪt] L19.[from Fort
Benton, Montana, US +
-ITE1.]
A highly colloidal, plastic, absorbent kind of clay having numerous uses esp. as an absorbent or filler.
■ bentonitic
[-'nɪtɪk] adjective M20. [TahlilGaran] English Dictionary ▲