Immaculate Conception: Meaning and Definition of

Immac'ulate Concep'tion

Pronunciation: [key]
— Rom. Cath. Ch. Rom. Cath. Ch.
  1. the dogma of the unique privilege by which the Virgin Mary was conceived in her mother's womb without the stain of original sin through the anticipated merits of Jesus Christ. Cf. virgin birth (def. 1).
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.