Definitions for: Impaction


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



Webster (1913) Definition: Im*pac"tion, n. [L. impactio a striking : cf. F.
impaction.]
1. (Surg.) The driving of one fragment of bone into another
so that the fragments are not movable upon each other; as,
impaction of the skull or of the hip.

2. An immovable packing; (Med.), a lodgment of something in a
strait or passage of the body; as, impaction of the fetal
head in the strait of the pelvis; impaction of food or
feces in the intestines of man or beast.

Synonyms: impacted tooth, impingement

See Also: condition, crash, disorder, smash, status, upset

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