Standard Lemma guide

occlusion

noun · 12 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • /əˈkluː.ʒən/
  • Southern-England: Recorded audio is listed in the source snapshot.
  • rhymes with -uːʒən
  • CMU ARPABET: AH0 K L UW1 ZH AH0 N Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

The process of occluding, or something that occludes.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

Anything that obstructs or closes a vessel or canal.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: medicine, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

The alignment of the teeth when upper and lower jaws are brought together.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: dentistry, medicine, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

noun

Meaning 4

An occluded front.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: climatology, meteorology, natural-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

noun

Meaning 5

A closure within the vocal tract that produces an oral stop or nasal stop.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: human-sciences, linguistics, phonetics, phonology, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

6

noun

Meaning 6

The absorption of a gas or liquid by a substance such as a metal.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: natural-sciences, physical-sciences, physics

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

7

noun

Meaning 7

The blocking of the view of part of an image by another.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: computer-graphics, computing, engineering, mathematics, natural-sciences, physical-sciences, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

8

noun

Meaning 8

the act of blocking

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: blockage, closure

Antonyms: none provided

Broader terms: obstruction

Narrower terms: implosion

9

noun

Meaning 9

an obstruction in a pipe or tube

Definition source: Princeton WordNet 3.0

Examples

  • we had to call a plumber to clear out the blockage in the drainpipe

Meaning relationships

Synonyms: blockage, block, closure, stop, stoppage

Antonyms: none provided

Broader terms: obstruction, obstructor, obstructer, impediment, impedimenta

Narrower terms: breechblock, breech closer, plug, stopper, stopple, vapor lock, vapour lock

10

noun

Meaning 10

(dentistry) the normal spatial relation of the teeth when the jaws are closed

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: position, spatial relation

11

noun

Meaning 11

(meteorology) a composite front when colder air surrounds a mass of warm air and forces it aloft

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: occluded front

Antonyms: none provided

Broader terms: front

12

noun

Meaning 12

closure or blockage (as of a blood vessel)

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: attack

Narrower terms: laryngospasm, embolism, thromboembolism, thrombosis, coronary occlusion

History

Etymology

Borrowed from Late Latin occlūsiō, occlūsiōnis (“occluding, obstruction”), from the Classical Latin occlūdō (“to shut up or close up; to restrain”), from ob + claudō (“to shut or close”).

Across languages

Translations

1 source translations are retained for this English entry.

  • Spanish: oclusión — Translations