Hail MaryPronunciation: /heɪlˈmɛəri/Definition of Hail Mary noun (plural Hail Marys) 1a prayer to the Virgin Mary used chiefly by Roman Catholics, beginning with part of Luke 1:28. Also called Ave Maria. 2 [usually as modifier] US (in American football) a long, typically unsuccessful pass made in an attempt to score late in the game. a plan or project with little chance of success. Hail Mary in other Oxford dictionaries Definition of Hail Mary in the US English dictionary
