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The Collaborative International Dictionary of English v.0.48 (gcide)

Calamine \Cal"a*mine\ (k[a^]l"[.a]*m[imac]n or -m[i^]n), n. [F.
calamine, LL. calamina, fr. L. Cadmia. See {Cadmia}.] (min.)
A mineral, the hydrous silicate of zinc.
[1913 Webster]

Note: The name was formerly applied to both the carbonate and
silicate of zinc each of which is valuabic as an ore;
but it is now usually restricted to the latter, the
former being called smithsonite.
[1913 Webster]