Broken stone of irregular sizes
Rubble is broken stone, of irregular size, shape[1] and texture; undressed especially as a filling-in. Rubble naturally found in the soil is known also as 'brash' (compare cornbrash).[2] Where present, it becomes more noticeable when the land is ploughed or worked.
- ^ Chisholm, Hugh, ed. (1911). "Rubble" . Encyclopædia Britannica. Vol. 23 (11th ed.). Cambridge University Press. p. 804.
- ^ "Rubble" def. 2., "Brash n. 2. def. 1. Oxford English Dictionary Second Edition on CD-ROM (v. 4.0) © Oxford University Press 2009