ˈsanəˌdēn, -_də̇n noun
( -s )
Etymology: German sanidin, from Greek sanid-, sanis board + German -in -ine; from its tabular crystals
: a variety of orthoclase in often transparent crystals in eruptive rock (as trachyte) that is thought to form at higher temperatures than adularia — called also glassy feldspar
• san·i·din·ic | ̷ ̷ ̷ ̷|dinik adjective