upper jaw

上颌，上颚

同：	[n.] maxilla, maxillary, upper jawbone

A whalebone whale(Balaena mysticetus)of Arctic seas,having a very large head and an arched upper jaw.
北极露脊鲸，弓头鲸生活在北冰洋的一种有鲸须的鲸鱼(北极露脊鲸露脊鲸属)，具有大的头部和拱形的上颚收藏
Either of the sinuses in the bones of the upper jaw,opening into the nasal cavity.
鼻窦上颚骨里通向鼻腔的窦道之一收藏
The tooth was drawn from the upper jaw
这颗牙由上颚拔出。收藏
A canine tooth of the upper jaw
上颚犬齿上颚的一个犬齿收藏
Jaw： Either of two bones that frame the mouth: a movable lower jaw (mandible) and a fixed upper jaw (maxilla).
颚:构成脊椎动物嘴的框架的骨骼，包括一个能活动的下颚和固定不动的上颚。收藏

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the jaw in vertebrates that is fused to the cranium
[同] maxilla, maxillary, upper jaw, upper jawbone

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