THEOLOGIAN Meaning of THEOLOGIAN in English the ‧ o ‧ lo ‧ gian /ˌθiːəˈləʊdʒ ə n $ -ˈloʊ-/ BrE AmE noun [countable] someone who has studied theology Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012