English Lexicon

Porosity

/ˌpɔːrˈɒsɪti/
nounCEFR C1 (Advanced)Top #14500 frequency
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Comprehensive Definitions & Senses

2 senses
As noun
  1. 1

    The state or quality of having pores or small spaces through which liquid or air may pass.

    "The high porosity of the soil allows rainwater to drain rapidly."
  2. 2

    The ratio of the volume of empty spaces or pores in a material to its total volume.

    "Engineers measured the porosity of the concrete to ensure structural integrity."

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Antonyms & Contrasting Words (1)

Linguistic Origin & Historical Etymology

Derived from the Middle French word 'porosité', originating from Medieval Latin 'porositas', which traces back to the Ancient Greek 'poros' meaning passage or pore. It has been used in English since the 16th century primarily in scientific and technical contexts to describe the quality of being porous.

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