A small nerve; specifically, in entomology, a small nervure or vein of the wing, emitted by a larger one or connecting two other nervures. Also called nervulet, veinlet, venule, or branch.(noun)
The Century Dictionary (Public Domain)
Use "nervule" in a sentence
"Discoidal nervule: Lepidoptera; = media 1 (Comst.)."
""Note the anal angle of the secondaries and the argentiferous discal area bordering the subcostal nervule.""
"Mr. Edward Doubleday, in his "Genera of Diurnal Lepidoptera," says, "The Papilionidæ may be known by the apparently four-branched median nervule and the spur on the anterior tibiæ, characters found in no other family.""