diffusionaladj.

Brit.

/dᵻˈfjuːʒn̩(ə)l/,

/dᵻˈfjuːʒən(ə)l/, U.S.

/dᵻˈfjuʒən(ə)l/

Origin: Formed within English, by derivation. Etymons: diffusion n., -al suffix¹.

Etymology: < diffusion n. + -al suffix¹.

Of, characterized by, or involving diffusion (in various senses).

ΘΚΠ

the world > matter > physics > mechanics > fluid mechanics > [adjective] > of or characterized by diffusion

diffusive1804

diffusional1861

1861 J. F. W. Herschel Meteorology 95 Such fogs would seem..to result from the quiet lateral diffusion..of vapour as a gas from some neighbouring or slowly approaching mass of vapour-loaded air... To such a fog the epithet of ‘Diffusional’ may not improperly be applied.

1888 Electrician 12 Oct. 736/2 In order that Fourier's diffusional law may be applicable we must either have the motion very slow..or the motion must be such that the velocity is the same for all points in the same stream-line.

1913 A. D. Weeks Educ. of To-morrow ix. 100 The present public library and college extension department represent the tadpole stage of a greater diffusional system.

1962 H. L. Kern et al. in A. Pirie Lens Metabolism 393 Diffusional exchange of the labelled atoms is minimal.

1985 Canad. Jrnl. Linguistics 30 199 A universal tendency in languages whatever their genetic relationship or whatever their diffusional contacts.

2003 G. D. S. Anderson in D. A. Holisky & K. Tuite Current Trends Caucasian, East European & Inner Asian Linguistics 11 In most other cases, the diffusional source is likely to be Tungusic.

This entry has been updated (OED Third Edition, March 2016; most recently modified version published online March 2022).

单词	diffusional
释义	diffusionaladj. Brit. /dᵻˈfjuːʒn̩(ə)l/, /dᵻˈfjuːʒən(ə)l/, U.S. /dᵻˈfjuʒən(ə)l/ Origin: Formed within English, by derivation. Etymons: diffusion n., -al suffix¹. Etymology: < diffusion n. + -al suffix¹. Of, characterized by, or involving diffusion (in various senses). ΘΚΠ the world > matter > physics > mechanics > fluid mechanics > [adjective] > of or characterized by diffusion diffusive1804 diffusional1861 1861 J. F. W. Herschel Meteorology 95 Such fogs would seem..to result from the quiet lateral diffusion..of vapour as a gas from some neighbouring or slowly approaching mass of vapour-loaded air... To such a fog the epithet of ‘Diffusional’ may not improperly be applied. 1888 Electrician 12 Oct. 736/2 In order that Fourier's diffusional law may be applicable we must either have the motion very slow..or the motion must be such that the velocity is the same for all points in the same stream-line. 1913 A. D. Weeks Educ. of To-morrow ix. 100 The present public library and college extension department represent the tadpole stage of a greater diffusional system. 1962 H. L. Kern et al. in A. Pirie Lens Metabolism 393 Diffusional exchange of the labelled atoms is minimal. 1985 Canad. Jrnl. Linguistics 30 199 A universal tendency in languages whatever their genetic relationship or whatever their diffusional contacts. 2003 G. D. S. Anderson in D. A. Holisky & K. Tuite Current Trends Caucasian, East European & Inner Asian Linguistics 11 In most other cases, the diffusional source is likely to be Tungusic. This entry has been updated (OED Third Edition, March 2016; most recently modified version published online March 2022). < adj.1861
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