impaction

A noun referring to a condition where something is tightly packed or wedged, commonly used in medical contexts for dental or fecal impaction, or in general for a forceful collision.

• 🇨🇳指某物被紧紧挤压或卡住的状态；常用于医学中指牙齿阻生或粪便嵌塞，也泛指强烈撞击或挤压。

1. State of being tightly packed C1 formal scientific

   The condition of being pressed closely together and firmly fixed.

   • The impaction of sediment layers created a dense rock formation.
   • Engineers studied the impaction of particles in the filter.
   • The impaction of the materials caused a blockage in the pipe.

   🇨🇳紧密嵌塞状态

   同义词: compactioncompressioncrowdingjammingpacking

2. Fecal impaction C1 formal medical

   A medical disorder in which feces become hardened and stuck in the lower colon, preventing normal passage.

   • The patient was diagnosed with fecal impaction after complaining of severe abdominal pain.
   • Chronic constipation can lead to impaction if left untreated.
   • Doctors treated the impaction with enemas and manual disimpaction.

   🇨🇳粪便嵌塞

3. Dental impaction C1 formal medical

   A dental disorder in which a tooth is so crowded in its socket that it cannot erupt normally.

   • Wisdom teeth often require removal due to impaction.
   • The X-ray revealed a severe impaction of the canine tooth.
   • Dental impaction can cause pain and infection if not treated.

   🇨🇳阻生牙

4. Sharp collision C1 formal scientific

   A forceful impact produced by striking or dashing against something.

   • The impaction of the meteorite created a large crater.
   • The car's impaction with the barrier caused significant damage.
   • The impaction of the waves against the cliff eroded the rock over time.

   🇨🇳撞击

   同义词: bumpcollisioncrashimpactjoltshocksmashstrike

• impactions plural form
• impactions' possessive plural form
• impaction's possessive singular form