Definition of opus signinum in English:

opus signinum

noun

Archaeology
  • A Roman flooring material consisting of broken tiles and other fragments mixed with lime mortar.

Origin

Mid 18th century. From classical Latin opus signīnum flooring material consisting of broken tiles and other fragments mixed with lime mortar from opus work + signīnum, neuter of signīnus Signian from Signia (modern Segni), the name of a town in Latium which was famous for its tiles + -īnus.

Pronunciation

opus signinum

/ˌəʊpəs sɪɡˈniːnəm/