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Transmissivity vs Opacity - What's the difference?

transmissivity | opacity |

As nouns the difference between transmissivity and opacity

is that transmissivity is (physics) a measure of the capacity of a material to transmit radiation (the ratio of the amounts of energy transmitted and received) while opacity is (uncountable) the state or quality of being opaque, not allowing light to pass through.

transmissivity

English

Noun

(transmissivities)
  • (physics) A measure of the capacity of a material to transmit radiation (the ratio of the amounts of energy transmitted and received)
  • (geology) A measure of the the capacity of a saturated aquifer to transmit water horizontally. SI units: m²/s. Symbol: T.

    • Related terms

    * transmissive

    opacity

    English

    Noun

  • (uncountable) The state or quality of being opaque, not allowing light to pass through
    • We could not see the sandbar due to the opacity of the muddy water.
  • (uncountable) The state or quality of being inaccessible to understanding
    • The opacity of these decisions is troubling.
  • (optics, countable) A measure of relative impenetrability to electromagnetic radiation such as light.
    • The opacity of a clean glass window is near zero.

    Synonyms

    * opaqueness

    Coordinate terms

    * transparency