n. [ Cf. Ir. fiothran a sort of grass. ] (Bot.) A species of creeping bent grass (Agrostis alba); -- called also fiorin grass. [ 1913 Webster ]

n. (Min.) A variety of opal occuring in the cavities of volcanic tufa, in smooth and shining globular and botryoidal masses, having a pearly luster; -- so called from Fiora, in Ischia. [ 1913 Webster ]

‖n. pl. [ It., pl. of fioritura a flowering. ] (Mus.) Little flowers of ornament introduced into a melody by a singer or player. [ 1913 Webster ]