Phrase guide

left atrium

noun · 2 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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1

noun

Meaning 1

One of the chambers of the heart in humans and other mammals, which receives oxygenated blood from the lungs via the pulmonary veins, and pumps it into the left ventricle.

Definition source: English Wiktionary via Wiktextract

Topics: anatomy, medicine, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

the left upper chamber of the heart that receives blood from the pulmonary veins

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: left atrium of the heart, atrium sinistrum

Antonyms: none provided

Broader terms: atrium cordis, atrium of the heart

History

Etymology

No etymology was provided for this word.