- Theology. the doctrine or dogma that, by the miraculous agency of God, the birth of Christ did not impair or prejudice the virginity of Mary.Compare Immaculate Conception.
- Zoology. parthenogenesis; parturition by a female who has not copulated.
- another name for parthenogenesis (def. 2)
- the doctrine that Jesus Christ had no human father but was conceived solely by the direct intervention of the Holy Spirit so that Mary remained miraculously a virgin during and after his birth