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Webster 1913 Edition

Noun.

[L.

marmoratio

A covering or incrusting with marble; a casing of marble; a variegating so as to resemble marble.

[R.]

Noun.

A covering or incrusting with marble. [Little used.]

marmoration ‎(plural marmorations)

A covering or encrusting with marble; a casing of marble; a variegated pattern resembling marble.