BENTONITE

Pronunciation (US):

(GB):

 I. (noun) 

Sense 1

Meaning:

An absorbent aluminum silicate clay formed from volcanic ash

Classified under:

Nouns denoting substances

Hypernyms ("bentonite" is a kind of...):

clay (a very fine-grained soil that is plastic when moist but hard when fired)

Derivation:

bentonitic (of or relating to or containing bentonite)

Credits