ˈagpəˌīt noun
( -s )
Etymology: Agpa, locality in southern Greenland + English -ite
: any of a group of feldspathoid rocks (as naujaites, lujauvrites, or kakortokites) from Ilimausak, Greenland, which differ from normal nephelite-syenites in having alumina in excess of the alkalies
• ag·pa·it·ic | ̷ ̷ ̷ ̷|id.ik adjective