Entry 2 senses Webster, 1913 Nervure /(nẽrv"ū̇r)/ · Nerv·ure · IPA /ˈnəːvj(ʊ)ə/ 01 n. One of the nerves of leaves. 1. One of the nerves of leaves.(Bot.) 2. One of the chitinous supports, or veins, in the wings of insects.(Zool.)