noun · 5 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
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Received-Pronunciation:/ˌkəʊ.ɑːkˈteɪ.ʃən/
Received-Pronunciation:/ˌkəʊ.ɑːkˈteɪ.ʃn̩/
General-American:/ˌkoʊˌɑɹkˈteɪ.ʃən/
rhymes with -eɪʃən
1
noun
Meaning 1
A congenital stricture or narrowing of a short section of the aorta.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
Topics: medicine, pathology, sciences
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: stenosis
Antonyms: none provided
2
noun
Meaning 2
A confinement to a narrow space.
Definition source: English Wiktionary via Wiktextract
Usage: countable, obsolete, uncountable
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
3
noun
Meaning 3
A pressure; that which presses.
Definition source: English Wiktionary via Wiktextract
Usage: countable, obsolete, uncountable
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
4
noun
Meaning 4
(biology) a narrowing or constriction of a vessel or canal; especially a congenital narrowing of the aorta
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
Broader terms: narrowing
5
noun
Meaning 5
tight or narrow compression
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.