The Collaborative International Dictionary
Binervate
Binervate \Bi*nerv"ate\, a. [L. bis twice + nervus sinew, nerve.]
(Bot.) Two-nerved; -- applied to leaves which have two longitudinal ribs or nerves.
(Zo["o]l.) Having only two nerves, as the wings of some insects.
Wiktionary
binervate
a. (context zoology botany English) Having only two nerves.