Standard Lemma guide

coarctation

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.

Meaning relationships

Synonyms: constriction

Antonyms: none provided

Broader terms: compression, condensation, contraction

History

Etymology

Borrowed from Latin coarctātiō (“drawing or crowding together”, noun), from coarctō (“to press together, compress, contract, confine”) + -ātiō (“-ation”, action noun suffix); equivalent to coarctate + -ion.