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Definition of atrial
atrial
/ˈeɪtriəl/
a · tri · al
atrial Lexical Profile
CEFR
C1
Grade
12
Tier
2
Usage
Top 10k
Syllables
3
atrial Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• adjective
1
Relating to, affecting, or located in the atrium or upper chambers of the heart, or another anatomical cavity.
Example
"The cardiologist prescribed medication to help regulate the patient's atrial fibrillation."
2
Relating to or situated in an architectural atrium or central open courtyard of a building.
Example
"Natural sunlight flooded the office through the high atrial skylight."
Synonyms
View all synonyms for atrial Antonyms
View all antonyms for atrial• Rhymes for atrial
Word Origin & Etymology
Formed in the 19th century from the anatomical noun atrium (derived from Latin atrium, meaning 'central court or entrance hall of a Roman house') combined with the adjectival suffix -al.
Cite this Entry
Wordmom. (2026). Definition of Atrial. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/atrial