ter·ra cot·ta or ter·ra·cot·ta or ter·ra-cot·ta 
(tĕrə-kŏtə)
(tĕrə-kŏtə)n.
1.
a. A hard semifired waterproof ceramic clay used in pottery and building construction.
b. Ceramic wares made of this material.
2. A brownish orange.
[Italian : terra, earth (from Latin; see TERRACE) + cotta, baked, cooked (from Latin cocta, feminine past participle of coquere, to cook; see pekw- in the Appendix of Indo-European roots).]
terra cottaroof tiles