verb (used with object), pum·iced, pum·ic·ing.
Origin of pumice
Examples from the Web for pumiceous
Historical Examples of pumiceous
All the upper part of the mountain is composed of a pumiceous tufa, rich in sanidine and of a characteristic greenish colour.A Study of Recent Earthquakes
Upon this rests a pumiceous breccia and conglomerate, with angular masses of trachyte, and some quartz pebbles.A Manual of Elementary Geology
It filled ravines, such as Fosso Grande, and concreted and hardened there into pumiceous tufa—a very instructive phenomenon.The San Francisco Calamity
Word Origin for pumice
1670s, from Latin pumiceus "of pumice stone," from pumex (see pumice).
c.1400, from Anglo-French and Old French pomis (13c.), from Late Latin pomicem (nominative pomex, genitive pumicis), from Oscan *poimex or some other dialectal variant of Latin pumex "pumice," from PIE *(s)poi-mo-, a root with connotations of "foam, froth" (see foam (n.)). Old English had pumic-stan. As a verb, early 15c., from the noun.