rootstock

2 definitions found

rootstock - Collaborative International Dictionary of English v.0.48 :

  Rootstock \Root"stock`\, n. (Bot.)
     A perennial underground stem, producing leafly stems or
     flower stems from year to year; a rhizome.
     [1913 Webster]

rootstock - WordNet (r) 2.1 (2005) :

  rootstock
      n 1: a horizontal plant stem with shoots above and roots below
           serving as a reproductive structure [syn: rhizome,
           rootstock, rootstalk]
      2: root or part of a root used for plant propagation; especially
         that part of a grafted plant that supplies the roots