Source : Webster's Revised Unabridged Dictionary (1913)

Quinquefoliate \Quin`que*fo"li*ate\, Quinquefoliated
\Quin`que*fo"li*a`ted\, a. [Quinque- + foliate, -ated: cf. F.
   quinqu['e]foli['e], L. quinquefolius.] (Bot.)
   Having five leaves or leaflets. --Gray.

Source : WordNet®

quinquefoliate
     adj : of a leaf shape; having five leaflets