Ōō-līte, n.

n. [Fr. oolite, oolithe, It. oolite, Sp. oolita, from Gr. ὠόν, egg, and λίθος, stone, from its resemblance to the roes of fish.] (Geol.) A variety of limestone, consisting of round grains, as small as the roe of a fish. It sometimes constitutes extensive beds.

☞ The proper oolite formation belongs to the mesozoic in the geological series, between the chalk and the lias. Dana.