midrib

2 definitions found

midrib - Collaborative International Dictionary of English v.0.48 :

  Midrib \Mid"rib`\, n. (Bot.)
     A continuation of the petiole, extending from the base to the
     apex of the lamina of a leaf.
     [1913 Webster]

midrib - WordNet (r) 2.1 (2005) :

  midrib
      n 1: the vein in the center of a leaf [syn: midrib, midvein]