Măn'di-ble, n.

n. [Fr. mandibule, Pr., Sp., & Pg. mandibula, It. mandibola, mandibula, Lat. mandibula, mandibulum, from mandere, to chew.] (Zoöl.) The lower jaw of vertebrates; — also applied to designate both jaws of birds, and the anterior or upper pair of jaws in invertebrates.