[pawr-uh s, pohr-]
- full of pores.
- permeable by water, air, etc.
Origin of porous
SynonymsSee more synonyms on Thesaurus.com
2. penetrable, pervious, sievelike, riddled.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for nonporous
A porous separator allows more energy to be drawn from the battery than a nonporous one.
When a wooden case is used, jars made of rubber, or some other nonporous, acid-resisting material are necessary.
When the skin is ready to apply, coat this plaster cast with some nonporous modelling material.Home Taxidermy for Pleasure and Profit</p>
Albert B. Farnham
- not permeable to water, air, or other fluids
- permeable to water, air, or other fluids
- biology geology having pores; poriferous
- easy to cross or penetratethe porous border into Thailand; the most porous defence in the league
C14: from Medieval Latin porōsus, from Late Latin porus pore ²
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.
Online Etymology Dictionary, © 2010 Douglas Harper
- Full of or having pores.
- Admitting the passage of gas or liquid through pores.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
- Having many pores or other small spaces that can hold a gas or liquid or allow it to pass through.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.