Relating to or involving the external part of the heart or conditions affecting the heart from outside.
From exocardia plus the suffix '-al,' an alternative adjectival form to '-ac' commonly used in medical and anatomical terminology to indicate relationship or pertinence.
Medical language often gives us multiple ways to say similar things—exocardiac and exocardial both work, showing how English lets doctors be flexible while staying precise about which organ system they're discussing.
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