01 n. Water-worn or rough broken stones; broken bricks, etc., used in coarse masonry, or to fill up between the facing courses of walls.
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1.
Water-worn or rough broken stones; broken bricks, etc., used in coarse masonry, or to fill up between the facing courses of walls.“Inside [the wall] there was rubble or mortar.” — Jowett (Thucyd.).
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2.
Rough stone as it comes from the quarry; also, a quarryman's term for the upper fragmentary and decomposed portion of a mass of stone; brash.
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3.
A mass or stratum of fragments or rock lying under the alluvium, and derived from the neighboring rock.(Geol.)
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4.
The whole of the bran of wheat before it is sorted into pollard, bran, etc.[Prov. Eng.]
Phrases & compounds
Coursed rubble —
rubble masonry in which courses are formed by leveling off the work at certain heights.