Is “Arrhythmia” a Scrabble word?
Yes
ARRHYTHMIA
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Arrhythmia
/eɪˈɹɪðmɪə/
noun
1.An irregular heartbeat.
2.A disease entity involving such beats, such as atrial fibrillation, ventricular tachycardia, AV nodal reentrant tachycardia, or others.
Synonyms: dysrhythmia