noun🔗Share上颌骨，上颚骨 Either of the two bones that together form the upper jaw."The dentist examined the X-ray to check the health of Sarah's teeth and maxilla, or upper jaw bone. "牙医检查了X光片，以检查莎拉的牙齿和**上颌骨（也就是上颚骨）**的健康状况。anatomyorganbodymedicinephysiologyChat with AIVocabulary GamePractice Reading
noun🔗Share上颚，小颚 (arthropodology) One of a set of paired mouthparts found in many arthropods and used for tasting and manipulating food."The grasshopper used its maxilla to taste the leaf before chewing it. "这只蚱蜢在咀嚼叶子之前，先用小颚品尝了一下味道。organismanatomybiologyanimalinsectpartChat with AIVocabulary GamePractice Reading
