argentationn.
/ɑːdʒənˈteɪʃən/ rare. Apparently only attested in dictionaries or glossaries.
The action of silvering or coating with silver.
ΚΠ
1731 Bailey Dict. in S. Johnson Dict.
This entry has not yet been fully updated (first published 1885; most recently modified version published online June 2021).
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n.1731