'Marmoratum opus' definitions:
Definition of 'Marmoratum opus'
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Marmoratum opus \Mar`mo*ra`tum o"pus\ [L. See Marmorate, and
Opus.] (Arch.)
A kind of hard finish for plasterwork, made of plaster of
Paris and marble dust, and capable of taking a high polish.
[1913 Webster] Marmoreal
