Proleg
\Pro"leg\, n. [Pref. pro- for, in place of + leg.] (Zool.) One of the fleshy legs found on the abdominal segments of the larv[ae] of Lepidoptera, sawflies, and some other insects. Those of Lepidoptera have a circle of hooks. Called also
proped,
propleg, and
falseleg.
[1913 Webster]