supersaturationn.

Brit.

/ˌsuːpəˌsatʃᵿˈreɪʃn/,

/ˌsjuːpəˌsatʃᵿˈreɪʃn/,

/ˌsuːpəˌsatjᵿˈreɪʃn/,

/ˌsjuːpəˌsatjᵿˈreɪʃn/, U.S.

/ˈˌsupərˌsætʃəˈreɪʃən/

Origin: Formed within English, by derivation. Etymons: super- prefix, saturation n.

Etymology: < super- prefix + saturation n., after supersaturate v. Compare German Übersättigung (1778 or earlier).

Chiefly Physics and Chemistry.

The condition or state of being or becoming supersaturated; the action of making something supersaturated; the addition or presence of more of a substance than is sufficient for saturation.

ΘΚΠ

the world > matter > chemistry > chemical reactions or processes > [noun] > chemical reactions or processes (named) > saturation > supersaturation

supersaturation1780

supersaturating1807

1780 S. Farr in tr. Hippocrates Hist. Epidemics Diss. p. xviii Thus an acid being known to be the cause of its purity, a supersaturation of that body must necessarily occasion the most healthy state.

1791 Philos. Trans. (Royal Soc.) 81 400 By a super-saturation of the medium.

1827 J. Bentham Rationale Judicial Evid. I. ii. viii. 435 By supersaturation, as well as by inanition, the powers of the mind..may be destroyed.

1836 J. M. Gully tr. F. Magendie Formulary (ed. 2) 116 The supersaturation of the system with iodine..may be known by..the following symptoms.

1842 E. A. Parnell Elements Chem. Anal. (1845) 321 The lead in excess now existing in the solution is precipitated by supersaturation with sulphuretted hydrogen gas.

1906 Physical Rev. 22 101 Using the fog chamber with moderate supersaturations the behavior is often astonishing.

1933 A. W. Barton Text Bk. Heat vii. 150 This is the cause of the formation of clouds, due to the supersaturation of the upper air.

2007 H. Svensmark & N. Calder Chilling Stars iv. 101 You need air saturated with water vapour twice over, at 100 per cent supersaturation or more, before water drops will form in clean air.

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

单词	supersaturation
释义	supersaturationn. Brit. /ˌsuːpəˌsatʃᵿˈreɪʃn/, /ˌsjuːpəˌsatʃᵿˈreɪʃn/, /ˌsuːpəˌsatjᵿˈreɪʃn/, /ˌsjuːpəˌsatjᵿˈreɪʃn/, U.S. /ˈˌsupərˌsætʃəˈreɪʃən/ Origin: Formed within English, by derivation. Etymons: super- prefix, saturation n. Etymology: < super- prefix + saturation n., after supersaturate v. Compare German Übersättigung (1778 or earlier). Chiefly Physics and Chemistry. The condition or state of being or becoming supersaturated; the action of making something supersaturated; the addition or presence of more of a substance than is sufficient for saturation. ΘΚΠ the world > matter > chemistry > chemical reactions or processes > [noun] > chemical reactions or processes (named) > saturation > supersaturation supersaturation1780 supersaturating1807 1780 S. Farr in tr. Hippocrates Hist. Epidemics Diss. p. xviii Thus an acid being known to be the cause of its purity, a supersaturation of that body must necessarily occasion the most healthy state. 1791 Philos. Trans. (Royal Soc.) 81 400 By a super-saturation of the medium. 1827 J. Bentham Rationale Judicial Evid. I. ii. viii. 435 By supersaturation, as well as by inanition, the powers of the mind..may be destroyed. 1836 J. M. Gully tr. F. Magendie Formulary (ed. 2) 116 The supersaturation of the system with iodine..may be known by..the following symptoms. 1842 E. A. Parnell Elements Chem. Anal. (1845) 321 The lead in excess now existing in the solution is precipitated by supersaturation with sulphuretted hydrogen gas. 1906 Physical Rev. 22 101 Using the fog chamber with moderate supersaturations the behavior is often astonishing. 1933 A. W. Barton Text Bk. Heat vii. 150 This is the cause of the formation of clouds, due to the supersaturation of the upper air. 2007 H. Svensmark & N. Calder Chilling Stars iv. 101 You need air saturated with water vapour twice over, at 100 per cent supersaturation or more, before water drops will form in clean air. This entry has been updated (OED Third Edition, June 2012; most recently modified version published online March 2022). < n.1780
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