An upper jaw especially of humans and other mammals in which the bony elements are closely fused.
日本語の意味
上顎骨（上あごの骨。特に人間や他の哺乳類で骨性の要素が密接に融合して構成されるもの）
英語の意味
An upper jaw especially of humans and other mammals in which the bony elements are closely fused.
