Standard Lemma guide

porosity

noun · 3 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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  • Southern-England: Recorded audio is listed in the source snapshot.
  • rhymes with -ɒsɪti

1

noun

Meaning 1

The state of being porous.

Definition source: English Wiktionary via Wiktextract

Usage: uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: porousness

Antonyms: none provided

2

noun

Meaning 2

A measure of how porous a material is; the ratio of the volume of pores to the total volume

Definition source: English Wiktionary via Wiktextract

Usage: countable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

the property of being porous; being able to absorb fluids

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: porousness

Antonyms: solidity

Broader terms: consistency, consistence, eubstance, body

Narrower terms: sponginess, permeability, permeableness

History

Etymology

Etymology tree English porous Proto-Indo-European *-teh2 Proto-Indo-European *-ts Proto-Indo-European *-teh2ts Latin -itāsder. Old French -itebor. Middle English -ite English -ity English porosity From porous + -ity.

Across languages

Translations

35 source translations are retained for this English entry.

  • Catalan: porositat — state of being porous
  • Czech: pórovitost — state of being porous
  • Danish: porøsitet — state of being porous
  • Dutch: poreusheid — state of being porous
  • Dutch: porositeit — state of being porous
  • Finnish: huokoisuus — state of being porous
  • French: porosité — state of being porous
  • German: Porösität — state of being porous
  • Ido: porozeso — state of being porous
  • Italian: porosità — state of being porous
  • Japanese: 気孔 (kikō) — state of being porous
  • Norwegian: porøsitet — state of being porous
  • Persian: پوکی (powkê) — state of being porous
  • Persian: تخلخل (taxalxol) — state of being porous
  • Polish: porowatość — state of being porous
  • Portuguese: porosidade — state of being porous
  • Russian: по́ристость (póristostʹ) — state of being porous
  • Spanish: porosidad — state of being porous
  • Swedish: porositet — state of being porous
  • Tagalog: kabugaan — state of being porous
  • Catalan: porositat — measure of how porous a material is
  • Czech: pórovitost — measure of how porous a material is
  • Dutch: poreusheid — measure of how porous a material is
  • Dutch: porositeit — measure of how porous a material is
  • French: porosité — measure of how porous a material is
  • German: Porösität — measure of how porous a material is
  • Gujarati: છિદ્રાળુતા (chidrāḷutā) — measure of how porous a material is
  • Italian: porosità — measure of how porous a material is
  • Persian: پوکی (powkê) — measure of how porous a material is
  • Persian: تخلخل (taxalxol) — measure of how porous a material is
  • Polish: porowatość — measure of how porous a material is
  • Portuguese: porosidade — measure of how porous a material is
  • Russian: по́ристость (póristostʹ) — measure of how porous a material is
  • Spanish: porosidad — measure of how porous a material is
  • Tagalog: kabugaan — measure of how porous a material is
Real reading context

porosity in complete knowledge articles