noun
- The condition of being pressed closely together and firmly fixed.
- A disorder in which feces are impacted in the lower colon.
- A disorder in which a tooth is so crowded in its socket that it cannot erupt normally.
- synonyms: impacted tooth
- A sharp collision produced by striking or dashing against something.
- synonyms: impingement
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). impaction. Retrieved September 20, 2026, from http://smartdefine.org/impaction/definitions/1245291 |
| Chicago | WordNet. 2010. "impaction" http://smartdefine.org/impaction/definitions/1245291 (accessed September 20, 2026). |
| Harvard | WordNet 2010, impaction, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/impaction/definitions/1245291>. |
| MLA | WordNet. "impaction" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/impaction/definitions/1245291> |