Rubble
Rubble , noun
[From an assumed Old French dim. of robe See Rubbish.]
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.
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. — Brande & C
3.
(Geology) A mass or stratum of fragments or rock lying under the alluvium, and derived from the neighboring rock. — Lyell
4.
The whole of the bran of wheat before it is sorted into pollard, bran, etc. [Provincial English] — Simmonds
Collocations (1)
Coursed rubble , rubble masonry in which courses are formed by leveling off the work at certain heights.