Finochio \Fi*no"chi*o\ (?; 277), n. [It. finocchio fennel, LL. fenuclum. See {Fennel}.] (Bot.) An umbelliferous plant ({F[oe]niculum dulce}) having a somewhat tuberous stem; sweet fennel. The blanched stems are used in France and Italy as a culinary vegetable. [1913 Webster]