Lingua \Lin"gua\ (l[i^][ng]"gw[.a]), n.; pl. Lingu[ae] (-gw[=e]). [L., the tongue.]

(Zo["o]l.)
   (a) A tongue.
   (b) A median process of the labium, at the under side of the mouth in insects, and serving as a tongue.

Source: Webster's Revised Unabridged Dictionary (1913)