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首頁英語詞典impactionimpaction英英釋意

impaction

[?m'p?k??n]
  • n. 壓緊；裝緊；嵌入

英英釋意

1. the condition of being pressed closely together and firmly fixed
2. a disorder in which feces are impacted in the lower colon
3. a disorder in which a tooth is so crowded in its socket that it cannot erupt normally
4. a sharp collision produced by striking or dashing against something