[¦är·kə¦tek·chər·əl ‚ter·ə′käd·ə] (materials) A hard-burnt, glazed or unglazed clay unit used in building construction.
architectural terra-cotta
A hard-burnt, glazed or unglazed clay unit used in building construction; plain or ornamental; machine-extruded or hand-molded; usually larger in size than brick or facing tile. Also see ceramic veneer.