Stolon \Sto"lon\, n. [L. stolo, -onis: cf. F. stolon. Cf. {Stole} a stolon, 1st {Stool}.] 1. (Bot.) A trailing branch which is disposed to take root at the end or at the joints; a stole. [1913 Webster] 2. (Zo["o]l.) An extension of the integument of the body, or of the body wall, from which buds are developed, giving rise to new zooids, and thus forming a compound animal in which the zooids usually remain united by the stolons. Such stolons are often present in Anthozoa, Hydroidea, Bryozoa, and social ascidians. See Illust. under {Scyphistoma}. [1913 Webster]