Meanings
nounright atrium (plural right atriums or right atria)
plural right atriums · plural right atria
- anatomyThe chamber of the heart, in humans and other mammals, that receives deoxygenated blood from the venae cavae and pumps it into the right ventricle.
Synonyms & antonyms
nounthe right upper chamber of the heart that receives blood from the venae cavae and coronary sinus
Similar
right atrium of the heartatrium dextrum
Broader
atrium cordisatrium of the heart
Synonym sets from Open English WordNet, CC BY 4.0.
Cite this entry
APA
right atrium. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/right%20atrium
MLA
“right atrium.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/right%20atrium. Accessed November 2, 2026.
Chicago
WatkinsX Dictionary, s.v. “right atrium,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/right%20atrium.
Source: right atrium on Wiktionary, CC BY-SA 4.0.