gaseous diffusionn.

Brit.

/ˌɡasɪəs dᵻˈfjuːʒn/,

/ˌɡeɪsɪəs dᵻˈfjuːʒn/, U.S.

/ˌɡæʃ(j)əs dəˈfjuʒ(ə)n/,

/ˌɡæsiəs dəˈfjuʒ(ə)n/

Origin: Formed within English, by compounding. Etymons: gaseous adj., diffusion n.

Etymology: < gaseous adj. + diffusion n.

Physics.

Diffusion of gas, esp. through a porous wall or membrane; a technique based on this, used for partially separating the gases in a mixture, esp. in order to enrich uranium for use as a nuclear fuel. Frequently attributive. Cf. diffusion n. 5.

ΘΚΠ

the world > matter > chemistry > physical chemistry > gaseous phase > [noun] > gaseous diffusion

gaseous diffusion1834

1834 W. Prout Chem., Meteorol. & Function Digestion App. 562 The diffusion of hydrogen and atmospheric air of the same temperature, and under the same pressure, is an instance of the simplest form of gaseous diffusion.

1886 Proc. Royal Soc. London 41 305 The apparatus..was admittedly not sufficiently impervious to gaseous diffusion to permit of a crucial experiment.

1922 Jrnl. Amer. Chem. Soc. 44 41 A possible cause of loss of efficiency in gaseous diffusion is local convective action, due to unevenness in the texture of the membrane.

1953 Pop. Sci. Feb. 178/1 The AEC's new gaseous-diffusion plant near Portsmouth, Ohio, for making uranium 235.

1977 Bull. Atomic Scientists Jan. 30/1 The standard technology for producing such ‘enriched’ uranium is the gaseous diffusion process.

2010 N.Y. Times (Nexis) 19 June b1 An older, electricity-intensive technique, known as gaseous diffusion, that involves pushing uranium gas through membranes.

This entry has been updated (OED Third Edition, March 2012; most recently modified version published online March 2022).

单词	gaseous diffusion
释义	gaseous diffusionn. Brit. /ˌɡasɪəs dᵻˈfjuːʒn/, /ˌɡeɪsɪəs dᵻˈfjuːʒn/, U.S. /ˌɡæʃ(j)əs dəˈfjuʒ(ə)n/, /ˌɡæsiəs dəˈfjuʒ(ə)n/ Origin: Formed within English, by compounding. Etymons: gaseous adj., diffusion n. Etymology: < gaseous adj. + diffusion n. Physics. Diffusion of gas, esp. through a porous wall or membrane; a technique based on this, used for partially separating the gases in a mixture, esp. in order to enrich uranium for use as a nuclear fuel. Frequently attributive. Cf. diffusion n. 5. ΘΚΠ the world > matter > chemistry > physical chemistry > gaseous phase > [noun] > gaseous diffusion gaseous diffusion1834 1834 W. Prout Chem., Meteorol. & Function Digestion App. 562 The diffusion of hydrogen and atmospheric air of the same temperature, and under the same pressure, is an instance of the simplest form of gaseous diffusion. 1886 Proc. Royal Soc. London 41 305 The apparatus..was admittedly not sufficiently impervious to gaseous diffusion to permit of a crucial experiment. 1922 Jrnl. Amer. Chem. Soc. 44 41 A possible cause of loss of efficiency in gaseous diffusion is local convective action, due to unevenness in the texture of the membrane. 1953 Pop. Sci. Feb. 178/1 The AEC's new gaseous-diffusion plant near Portsmouth, Ohio, for making uranium 235. 1977 Bull. Atomic Scientists Jan. 30/1 The standard technology for producing such ‘enriched’ uranium is the gaseous diffusion process. 2010 N.Y. Times (Nexis) 19 June b1 An older, electricity-intensive technique, known as gaseous diffusion, that involves pushing uranium gas through membranes. This entry has been updated (OED Third Edition, March 2012; most recently modified version published online March 2022). < n.1834
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