Is “Cardiac” a Scrabble word?
Yes
CARDIAC
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 Cardiac
/ˈkɑːdɪæk/
noun
1.A person with heart disease.
2.Heart disease.
3.A medicine that excites action in the stomach.
adjective
1.Pertaining to the heart.
“the cardiac arteries”
2.Pertaining to the cardia.
3.Exciting action in the heart, through the medium of the stomach; cordial; stimulant.