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单词 supersaturated
释义

supersaturatedadj.

Brit. /ˌsuːpəˈsatʃᵿreɪtᵻd/, /ˌsjuːpəˈsatʃᵿreɪtᵻd/, /ˌsuːpəˈsatjᵿreɪtᵻd/, /ˌsjuːpəˈsatjᵿreɪtᵻd/, U.S. /ˌsupərˈsætʃəˌreɪdᵻd/
Origin: Formed within English, by derivation. Etymons: super- prefix, saturated adj.
Etymology: < super- prefix + saturated adj. Compare post-classical Latin super-saturatus (1734 or earlier), French sursaturé (1765 or earlier), †supersaturé (1761 or earlier), and also German übersättigt (1753 or earlier). Compare later supersaturate v.
Saturated to excess; (Physics and Chemistry, of a liquid or gas) containing more of a substance than is sufficient for saturation.
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the world > matter > chemistry > chemical reactions or processes > [adjective] > of or relating to named chemical reactions or processes > supersaturation
supersaturated1788
sursaturated1806
1788 W. Nicholson tr. A.-F. de Fourcroy Elements Nat. Hist. & Chem. III. 122 The precipitate..is very yellow, if warm water be poured on the supersaturated solution [Fr. la dissolution surchargée], but is merely white if cold water be used.
1884 Harper's Mag. Mar. 601/1 A catch basin for the supersaturated soil.
1896 Notices Proc. Royal Inst. 14 105 A supersaturated solution of sulphate of soda..is instantly crystallised by a mechanical shock.
1938 R. Hum Chem. for Engin. Students xxiii. 647 In the absence of dust particles, the gas becomes supersaturated with water vapour.
1983 P. J. Sicard & P. Leroy in T. H. Grenby et al. Devel. Sweeteners—2 i. 15 Traditional fondant is made by beating a supersaturated sucrose solution.
2005 New Yorker 5 Sept. 163/2 The spice-warm, supersaturated colors that so beguiled the eye in the first hour come to clog the screen.
This entry has been updated (OED Third Edition, June 2012; most recently modified version published online March 2022).
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adj.1788
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