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Scottish National Dictionary (1700–)
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First published 1976 (SND Vol. X, list of scientific terms with Scottish connections).
This entry has not been updated since then but may contain minor corrections and revisions.
CLARK. Chem. In Clark process, the softening of water with slaked lime to convert acid carbonates into normal carbonates, devised in 1841 by Thomas Clark of Ayr (1801–67), professor of chemistry at Marischal College, Aberdeen.
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"Clark ". Dictionary of the Scots Language. 2004. Scottish Language Dictionaries Ltd. Accessed 18 Dec 2025 <http://www.dsl.ac.uk/entry/snd/snd00089922>
