Definition of foyaite in US English:

foyaite

noun

Geology
  • A kind of syenite (igneous rock).

Origin

Late 19th century: from Foya, anglicized name of Fóia, a mountain in southern Portugal where the rock was first found.

Pronunciation

foyaite

/ˈfoʊjəˌaɪt//ˈfōyəˌīt/