The Collaborative International Dictionary of English v.0.48:

Palmatifid \Pal*mat"i*fid\, a. [L. palmatus palmate + root of
   findere to split.] (Bot.)
   Palmate, with the divisions separated but little more than
   halfway to the common center.
   [1913 Webster]

WordNet (r) 3.0 (2006):

palmatifid
    adj 1: of a leaf shape; palmately cleft rather than lobed