ˈfȯi(y)əˌīt, ˈfōyə- noun
( -s )
Etymology: German foyait, from Foya (La Foia), mountain in Algarve province, Portugal + German -it -ite
1. : a coarse-grained hornblende-nepheline-syenite rock
2. : a nephelite-syenite rock with trachytoid texture
• fo·ya·it·ic | ̷ ̷ ̷ ̷|id.ik adjective