Is “Tachycardia” a Scrabble word?
Yes
TACHYCARDIA
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 Tachycardia
noun
1.A rapid resting heart rate, especially one above 100 beats per minute.
Synonyms: tachyrhythmia