The Collaborative International Dictionary of English v.0.48:

Paripinnate \Par`i*pin"nate\, a. [Pari- + pinnate.] (Bot.)
   Pinnate with an equal number of leaflets on each side; having
   no odd leaflet at the end.
   [1913 Webster]

WordNet (r) 3.0 (2006):

paripinnate
    adj 1: (of a leaf shape) pinnate with a pair of leaflets at the
           apex [syn: even-pinnate, abruptly-pinnate,
           paripinnate]