IMPACTION

Pronunciation (US):

(GB):

 Dictionary entry overview: What does impaction mean? 

• IMPACTION (noun)
  The noun IMPACTION has 4 senses:

1. the condition of being pressed closely together and firmly fixed

2. a disorder in which feces are impacted in the lower colon

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

4. a sharp collision produced by striking or dashing against something

  Familiarity information: IMPACTION used as a noun is uncommon.

 Dictionary entry details 

• IMPACTION (noun)

Sense 1

Meaning:

The condition of being pressed closely together and firmly fixed

Classified under:

Nouns denoting stable states of affairs

Hypernyms ("impaction" is a kind of...):

condition; status (a state at a particular time)

Derivation:

impact (press or wedge together; pack together)

Sense 2

Meaning:

A disorder in which feces are impacted in the lower colon

Classified under:

Nouns denoting stable states of affairs

Hypernyms ("impaction" is a kind of...):

disorder; upset (a physical condition in which there is a disturbance of normal functioning)

Sense 3

Meaning:

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

Classified under:

Nouns denoting stable states of affairs

Synonyms:

impacted tooth; impaction

Hypernyms ("impaction" is a kind of...):

disorder; upset (a physical condition in which there is a disturbance of normal functioning)

Sense 4

Meaning:

A sharp collision produced by striking or dashing against something

Classified under:

Nouns denoting acts or actions

Synonyms:

impaction; impingement

Hypernyms ("impaction" is a kind of...):

crash; smash (the act of colliding with something)

 Context examples 

Small intestinal obstruction that results from the impaction of thick meconium in the distal small intestine.

(Meconium Ileus, NCI Thesaurus)