Impaction

n. state of being firmly wedged in; overcrowded condition; condition in which a tooth is unable to fully erupt (Dentistry)

Impaction, from the Latin impingere, is a medical term used to describe several different types of blockage.
See more at Wikipedia.org...

Impaction /im·pac·tion/ 1. the condition of being impacted. 2. in obstetrics, the indentation of any fetal parts of one twin onto the surface of its [more]Impaction - Community and Resources

Noun
1. the condition of being pressed closely together and firmly fixed
(hypernym) condition, status
(derivation) impact
2. a disorder in which feces are impacted in the lower colon
(hypernym) disorder, upset
3. a disorder in which a tooth is so crowded in its socket that it cannot erupt normally
(synonym) impacted tooth
(hypernym) disorder, upset
4. a sharp collision produced by striking or dashing against something
(synonym) impingement
(hypernym) crash, smash

n. impaction, state of being firmly wedged in; overcrowded condition; condition in which a tooth is unable to fully erupt (Dentistry)