Immaculate Conception

WordReference Random House Unabridged Dictionary of American English © 2026

Immac′ulate Concep′tion, [Rom. Cath. Ch.]

1. Religion 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).

• 1680–90

Collins Concise English Dictionary © HarperCollins Publishers::

Immaculate Conception noun

1. the doctrine that the Virgin Mary was conceived without any stain of original sin