effusivity

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noun

A measure of a material's ability to exchange thermal energy with its surroundings; the square root of the product of its thermal conductivity and its volumetric heat capacity.

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Meanings

nouneffusivity (plural effusivities)

plural effusivities

  1. natural sciencesA measure of a material's ability to exchange thermal energy with its surroundings; the square root of the product of its thermal conductivity and its volumetric heat capacity.
  2. Effusiveness.

Origin

From effusive + -ity.

Full word history & related roots →
Cite this entry
APA

effusivity. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/effusivity

MLA

“effusivity.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/effusivity. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “effusivity,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/effusivity.

Source: effusivity on Wiktionary, CC BY-SA 4.0.