Secretage

• (n.) A process in which mercury, or some of its salts, is employed to impart the property of felting to certain kinds of furs.
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Secretage

Se'cret·age noun [ French] A process in which mercury, or some of its salts, is employed to impart the property of felting to certain kinds of furs. Ure.
Found on http://www.encyclo.co.uk/webster/S/51
No exact match found