retrusion

/ri-troo-zhuhn, -shuhn/US // rɪˈtru ʒən, -ʃən //

回缩,回流,倒退,回缩性

Definitions

n.名词 noun

1
Dentistry.
- : the act of moving a tooth backward.
- : a condition characterized by the backward displacement of a tooth or teeth.