e4
jaw; palate

strokes 18
radical
strokes after radical 9
齿颚矫正学 齒顎矯正學 chi3 e4 jiao3 zheng4 xue2
orthodontics

唇颚裂 唇顎裂 chun2 e4 lie4
cleft lip and palate

毒颚 毒顎 du2 e4
the sting (of scorpion etc)

颚部 顎部 e4 bu4
jaw

颚裂 顎裂 e4 lie4
cleft palate (birth defect)

颚龈音 顎齦音 e4 yin2 yin1
prepalatal or palatal sound (linguistics); palato-alveolar consonant (linguistics)

上颚正门齿 上顎正門齒 shang4 e4 zheng4 men2 chi3
maxillary central incisor

下颚 下顎 xia4 e4
mandible (lower jaw)

小颚 小顎 xiao3 e4
mandible (lower jaw)

龈颚音 齦顎音 yin2 e4 yin1
prepalatal sound (linguistics)