Definitions for "Proleg"
One of the fleshy legs found on the abdominal segments of the larvæ of Lepidoptera, sawflies, and some other insects. Those of Lepidoptera have a circle of hooks. Called also proped, propleg, and falseleg.
The stubby, fleshy limbs attached to the abdomen of certain insect larvae, as in caterpillars. M. sexta larvae have four pairs of prolegs on the abdomen, with an additional pair at the very last segment.
Any process or appendage that serves the purpose of a leg; specifically, the fleshy, unjointed, ventral abdominal projections of caterpillars and certain sawfly larvae.[1] Fin. Swe.