CONCEPTION, in the philosophy of the mind. See METAPHYSICS.

Conception CONCEPTION, in Physiology, denotes the first formation of the embryo or fetus in the womb.

Concinnous. CONCEPTION, Immaculate, of the Holy Virgin, is a feast established in honour of the holy virgin, particularly with regard to her having been conceived and born immaculate, or without original sin, and is held in the Roman Catholic church on the 8th of December. The immaculate conception is the great head of controversy between the Scotists and Thomists, the former maintaining and the latter impugning it.