retrognathia

[医] 缩颌, 后退颌, 退缩颌

发音

US /ˌɹə.tɹoʊˈnæθ.i.ə/

释义与例句

n.
  1. 1.

    A malocclusion in which the maxilla or mandible is further posterior than would be expected.

    不可数

词源

From retro- + Ancient Greek γνάθος (gnáthos, “jaw”) + -ia.

来源：wiktionary