from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An Ancient Roman construction technique, using irregular-shaped and randomly placed uncut stones or fist-sized tuff blocks inserted in a core of opus caementicium, or Roman concrete.
from the GNU version of the Collaborative International Dictionary of English
- adj. a kind of masonry employed in building walls, in which the stones were not squared nor laid in courses; rubblework.
- n. See under Incertum.