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Webster 1913 Edition


Occlusion

Oc-clu′sion

,
Noun.
[See
Occlude
.]
1.
The act of occluding, or the state of being occluded.
Constriction and
occlusion
of the orifice.
Howell.
2.
(Med.)
The transient approximation of the edges of a natural opening; imperforation.
Dunglison.
Occlusion of gases
(Chem. & Physics)
,
the phenomenon of absorbing gases, as exhibited by platinum, palladium, iron, or charcoal;
thus, palladium absorbs, or
occludes
, nearly a thousand times its own volume of hydrogen, and in this case a chemical compound seems to be formed
.

Webster 1828 Edition


Occlusion

OCCLU'SION

,
Noun.
s as z. [L. occlusio.] a shutting up; a closing.
[This is an elegant word, though little used.]

Definition 2024


occlusion

occlusion

English

Noun

occlusion (plural occlusions)

  1. The process of occluding, or something that occludes.
  2. (medicine) Anything that obstructs or closes a vessel or canal.
  3. (medicine, dentistry) The alignment of the teeth when upper and lower jaws are brought together.
  4. (meteorology) An occluded front.
  5. (linguistics) A closure within the vocal tract that produces an oral stop or nasal stop.
  6. (physics) The absorption of a gas or liquid by a substance such as a metal.
  7. (computing) The blocking of the view of part of an image by another.

Derived terms


French

Etymology

From the post-Classical Latin occlūsiō (occluding”, “obstruction), from the Classical Latin occlūdō (I shut up or close up”, “I restrain), from ob + claudō (I shut or close).

Noun

occlusion f (plural occlusions)

  1. occlusion

Derived terms

  • rectocclusion