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supersulphate
supersulphate n. 
/ˌsjuːpəˈsʌlfeɪt/,
Brit. /ˌsuːpəˈsʌlfeɪt/
, /ˌsuːpəˈsʌlfeɪt//ˌsjuːpəˈsʌlfeɪt/U.S. /ˌsupərˈsəlˌfeɪt/
(a) a salt containing the highest possible proportion of sulphate (now chiefly historical); (b) a commercial preparation, esp. a fertilizer or a cement, containing a high proportion of sulphate./ˌsupərˈsəlˌfeɪt/ΚΠ
1803 F. Accum Syst. Theoret. & Pract. Chem II. 78 This saline compound is a super-sulphate of mercury.
1919 N. Nordman Peace Probl. i. iii. 29 Of the fertilisers,..supersulphates were imported from England.
1961 Brit. Jrnl. Plastic Surg. 14 98 Dr Simpson's supersulphate of zinc paste was recommended as ‘a very valuable caustic particularly useful for removal of cancerous tumours of the breast’.
2000 I. Odler Special Inorg. Cements xx. 294 Galvanized steel is susceptible to chloride-induced corrosion in highly alkaline environments... The corrosion may be reduced significantly by the use of supersulfate cement.
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as lemmas
- wheelwindow
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- west end
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