MISSIONARY POSITION meaning : 1. a position for having sex in which a woman lies on her back and her partner is above and facing…. Learn more. Definition of Missionary Position in the Definitions.net dictionary. Meaning of Missionary Position . What does Missionary Position mean ? Information and translations of Missionary Position in the most comprehensive dictionary definitions resource on the web. Missionary position | meaning of Missionary position Listen and Learn English 15.6K subscribers Subscribe Definition of missionary position . English dictionary and integrated thesaurus for learners, writers, teachers, and students with advanced, intermediate, and beginner levels.