impaction

英

美

n.  压紧；装紧；嵌入

医学

COCA.43418

英英释义

noun

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

双语例句