顎

(1)the protruding part of the lower jaw

(2)下顎の突き出た部分

(3)the part of the skull of a vertebrate that frames the mouth and holds the teeth

(4)口を形成し、歯を支える脊椎動物の頭蓋の一部分

(5)respiratory organ of aquatic animals that breathe oxygen dissolved in water

(6)水中に溶解した酸素を吸う水生動物の呼吸器官

(7)the bones of the skull that frame the mouth and serve to open it; the bones that hold the teeth

(8)口を形作り、それを開けるのに働く頭蓋骨の骨

(9)歯を支える骨