mandible
/ˈmændɪbl; `mændəbl/ n
(anatomy 解)
1 jaw, esp the lower jaw of mammals and fishes 颌; （尤指哺乳动物和鱼的）下颌. =>illus at skeleton 见skeleton插图.
2 upper or lower part of a bird's beak 鸟喙的上部或下部.
3 (in insects, etc) either half of the upper pair of jaws, used for biting and seizing （昆虫等的）大颚.