stolon

from WordNet (r) 3.0 (2006)

stolon
    n 1: a horizontal branch from the base of plant that produces
         new plants from buds at its tips [syn: {stolon}, {runner},
         {offset}]

from The Collaborative International Dictionary of English v.0.48

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. (Zool.) 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]