PUMICE STONE

Pronunciation (US):

(GB):

 I. (noun) 

Sense 1

Meaning:

A light glass formed on the surface of some lavas; used as an abrasive

Synonyms:

pumice; pumice stone

Classified under:

Nouns denoting substances

Hypernyms ("pumice stone" is a kind of...):

rock; stone (material consisting of the aggregate of minerals like those making up the Earth's crust)

Credits