Permeability

//ˌpɝmi.əˈbɪlɪti// noun

noun ·Uncommon ·Advanced level

Definitions

Noun
  1. 1
    The property of being permeable. uncountable, usually
  2. 2
    the property of something that can be pervaded by a liquid (as by osmosis or diffusion) wordnet
  3. 3
    The rate of flow of a fluid through a porous material. uncountable, usually

    "The sulfite cake is usually blended with fly ash (and possibly lime) to produce a landfillable byproduct of low permeability."

  4. 4
    A measure of the ability of a rock to transmit fluids (such as oil or water). uncountable, usually
  5. 5
    A quantitative measure of the degree of magnetization of a material in the presence of an applied magnetic field (measured in newtons per ampere squared in SI units). uncountable, usually

Example

More examples

"The high permeability of gravel makes it a poor choice for a dam."

Etymology

From French perméabilité, equivalent to permeable + -ity.

Related phrases

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.