WordReference Random House Unabridged Dictionary of American English © 2026
a•car•di•a
(ā kär′dē ə),USA pronunciation n. [Pathol.]
a•car•di•ac
(ā kär′dē ak′),USA pronunciation adj.
- Pathologycongenital absence of a heart.
- a-6 + -cardia
'acardiac' also found in these entries (note: many are not synonyms or translations):