DalradianPronunciation: /dalˈrɑːdɪən/Definition of Dalradian adjective Geology relating to or denoting a series of late Precambrian metamorphic rocks, occurring in Scotland and Ireland. (as noun the Dalradian) the Dalradian series of rocks. Origin: late 19th century: from Dalrad-, from Dalriada (by alteration), + -ian
