impaction
A compression; the packing together of loose matterA compression; the packing together of loose matter.
Meaning
5 senses(countable, uncountable)A compression; the packing together of loose matter.
(countable, uncountable)Something packed together tightly; a mass of densely-packed matter.
(countable, uncountable)A solid, immobile bulk of stool.
(countable, uncountable)The failure of a tooth to erupt into the dental arch, because of adjacent teeth, dense overlying bone, excessive soft tissue, or other factor.
(countable, uncountable)The situation where an institute, usually a college or university, receives more applications from qualified applicants than the number of spaces available, meaning that meeting the minimum admission requirements does not guarantee acceptance.
- a disorder in which a tooth is so crowded in its socket that it cannot erupt normally
- a disorder in which feces are impacted in the lower colon
- the condition of being pressed closely together and firmly fixed
- a sharp collision produced by striking or dashing against something
Translations
2 languagesOrigin
From Latin impingere (“to dash against, impinge”).From Latin impingere (“to dash against, impinge”).
Wiktionary, CC BY-SA 4.0 · source
Forms
plural: impactions| Singular | impaction |
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| Plural | impactions |
regular
Synonyms
2 synonyms- a disorder in which a tooth is so crowded in its socket that it cannot erupt normally:impacted tooth
- a sharp collision produced by striking or dashing against something:impingement
Word family
5 related wordsLessons for this word
1 lessons- A1Countable and uncountable nouns — Because it can be uncountable