porosity Hear it!

porosity Definition

po·ros·ity (pō räsə tē, pə-)

noun pl. -·ties

  1. the quality or state of being porous
  2. the ratio, usually expressed as a percentage, of the volume of a material's pores, as in rock, to its total volume
  3. anything porous
  4. pore

Etymology: ME porositee < ML porositas: see porous + -ity

porosity Usage Examples

Converse of object

  • reduce: This is applied to the wood before staining and reduces the porosity of the wood.
  • increase: They have usually undergone weathering and erosion that has increased porosity.
  • have: It also means that our hair has poor porosity.
  • control: Indeed, it is not hard to make such materials porous: the problem comes in controlling the porosity.

Adjective modifier

  • low: The key findings were: Low porosity must be achieved.
  • high: Material of low mass per unit area and high surface porosity will tend not to reflect sound.
  • secondary: Development of secondary porosity in feldspars from oil reservoir rocks.
  • effective: The diffusional flow test methods assess the effective porosity of a filter membrane.

Modifies a noun

  • development: Evaluation of wireline log data indicates high gas saturations and good porosity development within the gas bearing interval.
  • test: They will expect you to have undertaken your own soil porosity test as evidence for your election.
  • measurement: Table 1, results from all of the porosity measurements on each of the four samples.
  • canopy: If you have just brought a new zero porosity canopy, can you pack it?

Noun used with modifier

  • fracture: It is estimated that less than 5 % of the wells drilled into quartzite have encountered fracture porosity.
  • soil: Due to the poor soil porosity in the north of the District this system is not usually suitable.
  • %: The final product is very pure polycrystalline " artificial graphite " with about 20 % porosity.
  • matrix: In basement reservoirs matrix porosity is effectively close to zero and most of the storage capacity and permeability is due to fractures.
  • surface: Material of high mass per unit area and low surface porosity will tend to reflect airborne sound.

Preposition: in

  • reservoir: This has major implications for trying to model the secondary growth or reduction of porosity in hydrocarbon reservoirs.

Preposition: of

  • surface: Primers and sealers ( Primers and sealers are designed to take up the porosity of the surface to avoid excessive use of top coats.
  • %: The permeability reflects the high porosity of 35 %, the relative permeabilities are equally favorable.

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