binervate

from The Collaborative International Dictionary of English v.0.48

Binervate \Bi*nerv"ate\, a. [L. bis twice + nervus sinew,
   nerve.]
   1. (Bot.) Two-nerved; -- applied to leaves which have two
      longitudinal ribs or nerves.
      [1913 Webster]

   2. (Zool.) Having only two nerves, as the wings of some
      insects.
      [1913 Webster]