[ pawr-uhs, pohr- ]
/ ˈpɔr əs, ˈpoʊr- /
full of pores.
permeable by water, air, etc.
Origin of porous
po·rous·ly, adverbpo·rous·ness, nounnon·po·rous, adjectivenon·po·rous·ness, noun
un·po·rous, adjectiveun·po·rous·ness, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for porously
/ (ˈpɔːrəs) /
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
Derived Formsporously, adverbporousness, noun
Word Origin for porous
C14: from Medieval Latin porōsus, from Late Latin porus pore ²
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for porously
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
Medicine definitions for porously
[ pôr′əs ]
Full of or having pores.
Admitting the passage of gas or liquid through pores.
Related formspo′rous•ness n.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Science definitions for porously
[ pôr′əs ]
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.