单词 | retrusion |
释义 | retrusion —retrusive /ri trooh"siv/, adj. /ri trooh"zheuhn, -sheuhn/, n. Dentistry. 1. the act of moving a tooth backward. 2. a condition characterized by the backward displacement of a tooth or teeth. [1650-60; < L retrus(us) removed, concealed (ptp. of retrudere; see RETRUDE) + -ION] |
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