impaction

汉语翻译

英语解释：

名词 impaction:

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
   同义词：impacted tooth
4. a sharp collision produced by striking or dashing against something
   同义词：impingement