Opus incertum (redirected from incertum opus)
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|(Anc. Arch.) ||a kind of masonry employed in building walls, in which the stones were not squared nor laid in courses; rubblework.|
|(Arch.) ||See under Incertum.|
See also: Incertum, Opus
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.