Origin of porous
Examples from the Web for nonporous
When a wooden case is used, jars made of rubber, or some other nonporous, acid-resisting material are necessary.
A porous separator allows more energy to be drawn from the battery than a nonporous one.
When the skin is ready to apply, coat this plaster cast with some nonporous modelling material.Home Taxidermy for Pleasure and Profit|Albert B. Farnham
British Dictionary definitions for nonporous (1 of 2)
British Dictionary definitions for nonporous (2 of 2)
Word Origin for porous
Word Origin and History for nonporous
late 14c., "full of pores," from Old French poros (14c., Modern French poreux), from Medieval Latin porosus; or directly from Latin porus "an opening" (see pore (n.)). Figurative use from 1640s.