| n. | 1. | (Surg.) The driving of one fragment of bone into another so that the fragments are not movable upon each other; |
| 2. | (Med.) An immovable packing; |
| Noun | 1. | impaction - the condition of being pressed closely together and firmly fixed |
| 2. | impaction - a disorder in which feces are impacted in the lower colon | |
| 3. | impaction - a disorder in which a tooth is so crowded in its socket that it cannot erupt normally Synonyms: impacted tooth | |
| 4. | impaction - a sharp collision produced by striking or dashing against something Synonyms: impingement |
The trapping of an object in a body passage. Examples are stones in the bile duct or hardened stool in the colon.
condition, impact, status