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 (pə-rŏs′ĭ-tē, pô-)
n. pl. po·ros·i·ties
1. The state or property of being porous.
2. A structure or part that is porous.
3. The ratio of the volume of all the pores in a material to the volume of the whole.

[Middle English porosite, from Old French, from Medieval Latin porōsitās, from porōsus, porous; see porous.]
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.


n, pl -ties
1. the state or condition of being porous
2. (Geological Science) geology the ratio of the volume of space to the total volume of a rock
[C14: from Medieval Latin porōsitās, from Late Latin porus pore2]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(pɔˈrɒs ɪ ti, poʊ-, pə-)

n., pl. -ties.
1. the state or quality of being porous.
2. (in rock or other natural material) the ratio of aggregated pore space to the volume of the entire mass: used as a measure of the amount of fluid, as oil, that a geologic stratum might hold.
[1350–1400; Middle English porosytee < Medieval Latin porōsitās. See porous, -ity]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.porosity - the property of being porous; being able to absorb fluids
consistency, eubstance, consistence, body - the property of holding together and retaining its shape; "wool has more body than rayon"; "when the dough has enough consistency it is ready to bake"
sponginess - the porosity of a sponge
permeability, permeableness - the property of something that can be pervaded by a liquid (as by osmosis or diffusion)
solidity, solidness - the consistency of a solid
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.


[pɔːˈrɒsɪtɪ] Nporosidad f
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


n (of rocks, substance)Porosität f; (of skin)Porigkeit f
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007
References in periodicals archive ?
In this post, I will be talking about hair porosity and wash day.
Chemical compaction and pressure induced dissolution of quartz grains provided silica that precipitated as cement thereby reducing inter-granular porosity.
Therefore, the microscopic characteristics of oil shale in horizontal fractures could be obtained using its average porosity and permeability.
They cover reflections on the term: porosity--porous city; architecture and urban design: exploring the unforeseen--porosity as a concept; reproducing space and acting: performativity, sensuality, temporary interventions, negotiation; urban regulations and planning: about legal frameworks, basic politics, and tactics; urban territoriality and strategies: moving from the macro to the micro scale in the Anthropocene; and detecting porosity: hanging around in the urban field.
They showed that the most uniform velocity distributions in the collection chamber downstream of the diffuser were provided using two perforated plates of porosity [beta] = 0.5.
The main objective of this study is to determine petrophysical evaluations (porosity, water saturation, and hydrocarbon saturation) for the Early Cretaceous formations at Duhok basin.
where [[sigma].sub.0] is the uniaxial compressive strength of concrete at a porosity of 0; p is the porosity; m is the degree of hydration, 0 [less than or equal to] m [less than or equal to] 1, m = 0 means the start of the hydration and m = 1 means the completion of the hydration; and [m.sub.w]/[m.sub.c] is the water/cement ratio.
Thus, cement paste porosity is a key structural property that needs to be quantified by performing in situ tests.
In view of this, the objectives of this study are to investigate the mass transfer and nonlinear seepage properties of completely weathered granite and to quantify the impacts of water pressure and initial porosity on the water inrush evolution.
Research on the influence of separator thickness and porosity on the performance appears less in publications when compared to other factors.