porous

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po·rous

(pôr′əs)

adj.

1. Admitting the passage of gas or liquid through pores or interstices.

2. Easily crossed or penetrated: a porous border.

[Middle English, from Old French poreux, poros, from Medieval Latin porōsus, from Latin porus, passage; see pore².]

po′rous·ly adv.

po′rous·ness n.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

porous

(ˈpɔːrəs)

adj

1. permeable to water, air, or other fluids

2. (Geological Science) biology geology having pores; poriferous

3. easy to cross or penetrate: the porous border into Thailand; the most porous defence in the league.

[C14: from Medieval Latin porōsus, from Late Latin porus pore²]

ˈporously adv

ˈporousness n

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

po•rous

(ˈpɔr əs, ˈpoʊr-)

adj.

1. permeable by water, air, etc.

2. full of pores.

[1350–1400; Middle English, variant of porose < Medieval Latin porōsus. See pore², -ous]

po′rous•ly, adv.

po′rous•ness, n.

po·rous

(pôr′əs)

Having many pores or other small spaces that allow a gas or liquid to pass through.

porosity (pə-rŏs′ĭ-tē) noun

The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

porous

Able to allow the passage of water, air, or other fluids.

ThesaurusAntonymsRelated WordsSynonymsLegend:

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Adj.	1.	porous - able to absorb fluids; "the partly porous walls of our digestive system"; "compacting the soil to make it less porous" permeable - allowing fluids or gases to pass or diffuse through; "permeable membranes"; "rock that is permeable by water"
	2.	porous - full of pores or vessels or holes poriferous nonporous - not porous; especially not having vessels that appear as pores; "nonporous wood"
	3.	porous - allowing passage in and out; "our unfenced and largely unpoliced border inevitably has been very porous" holey leaky - permitting the unwanted passage of fluids or gases ; "a leaky roof"; "a leaky defense system"

porous

adjective permeable, absorbent, spongy, absorptive, penetrable, pervious The local limestone is extremely porous.
impenetrable, impervious, impermeable, nonporous

Collins Thesaurus of the English Language – Complete and Unabridged 2nd Edition. 2002 © HarperCollins Publishers 1995, 2002

Translations

Spanish / Español

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porous

[ˈpɔːrəs] ADJ → poroso

Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005

pore¹

(poː) noun

a tiny hole, especially of a sweat gland in the skin. poro

ˈporous adjective

allowing liquid to pass through. porous clay.poroso

po·rous

a. poroso-a, permeable.

English-Spanish Medical Dictionary © Farlex 2012

References in classic literature ?

Also I made pores for porous plasters and high-grade holes for doughnuts and buttons.

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Many of the mountain streams disappear in the plains; either absorbed by their thirsty soil, and by the porous surface of the lava, or swallowed up in gulfs and chasms.

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"Besides, monsieur, I long to live once more among Protestants; they are more honest than Catholics; a Romish school is a building with porous walls, a hollow floor, a false ceiling; every room in this house, monsieur, has eyeholes and ear-holes, and what the house is, the inhabitants are, very treacherous; they all think it lawful to tell lies; they all call it politeness to profess friendship where they feel hatred."

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The lake had lost the beauty of a field of ice, but still a dark and gloomy covering concealed its waters, for the absence of currents left them yet hidden under a porous crust, which, saturated with the fluid, barely retained enough strength to preserve the continuity of its parts.

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These porous rocks serve as a reservoir for th scanty rain-water; and consequently on the line where th igneous and sedimentary formations unite, some smal springs (most rare occurrences in Patagonia) burst forth and they could be distinguished at a distance by the circumscribed patches of bright green herbage.

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But the soul that ascends to worship the great God is plain and true; has no rose-color, no fine friends, no chivalry, no adventures; does not want admiration; dwells in the hour that now is, in the earnest experience of the common day,--by reason of the present moment and the mere trifle having become porous to thought and bibulous of the sea of light.

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He moved to the end of the veranda to refill the heavy, porous clay water-jug from the filter.

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