D.O.A. Meaning of D.O.A. in English D.O.A. /ˌdiː əʊ ˈeɪ $ -oʊ-/ BrE AmE adjective (dead on arrival) used when someone is said by a doctor to be dead when they are brought to a hospital Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012