The Collaborative International Dictionary of English v.0.48:

Leporine \Lep"o*rine\ (l[e^]p"[-o]*r[imac]n or -r[i^]n), a. [L.
   leporinus, fr. lepus, leporis, hare. See Leveret.] (Zool.)
   Of or pertaining to a hare; like or characteristic of, a
   hare.
   [1913 Webster]