pumicates

Verb

pumicate (third-person singular simple present pumicates, present participle pumicating, simple past and past participle pumicated)

1. (transitive) To make smooth with pumice.
   • It was a long, spacious place, where the polishers, in smocks of black serge, sat in double rows pumicating and grinding their pieces at little work-boards.1925, Émile Zola, Ernest Alfred Vizetelly, Fruitfulness, page 8