PUMICE

[ 'pʌmɪs ]

■ noun a light and porous form of solidified lava, used as a skin abrasive.

■ verb rub with ~.

Derivatives

~ous pju:'mɪʃəs adjective

Origin

ME: from OFr. pomis , from a L. dialect var. of pumex , pumic- ; cf. pounce 2 .