tripinnate

from WordNet (r) 3.0 (2006)
tripinnate
    adj 1: (of a leaf shape) thrice pinnate [syn: {tripinnate},
           {tripinnated}]
from The Collaborative International Dictionary of English v.0.48
Tripinnate \Tri*pin"nate\, a. [Pref. tri- + pinnate.] (Bot.)
   Having bipinnate leaflets arranged on each side of a rhachis.
   [1913 Webster]
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