bipinnatifid

from WordNet (r) 3.0 (2006)

bipinnatifid
    adj 1: pinnatifid with the segments also pinnatifid

from The Collaborative International Dictionary of English v.0.48

Bipinnatifid \Bi`pin*nat"i*fid\, a. [Pref. bi- + pinnatifid.]
   (Bot.)
   Doubly pinnatifid.
   [1913 Webster]

   Note: A bipinnatifid leaf is a pinnatifid leaf having its
         segments or divisions also pinnatifid. The primary
         divisions are pinn[ae] and the secondary pinnules.
         [1913 Webster]