n. [ Gr. ke`ras horn. ] (Zool.) A gastropod shell belonging to the family Cerithiïdæ; -- so called from its hornlike form. [ 1913 Webster ]
n. [ From Cherium. ] (Min.) A mineral of a brownish of cherry-red color, commonly massive. It is a hydrous silicate of cerium and allied metals. [ 1913 Webster ]