The Collaborative International Dictionary of English v.0.48:
odd-pinnate \odd-pinnate\ adj. (Bot.) Pinnate with a single leaflet at the apex; -- of a leaf shape. Syn: imparipinnate. [WordNet 1.5]WordNet (r) 3.0 (2006):
odd-pinnate adj 1: (a leaf shape) pinnate with a single leaflet at the apex [syn: odd-pinnate, imparipinnate]