pericardial vs pericardiac

pericardial and pericardiac both are adjectives.

Word	Noun	Adjective	Verb	Adverb
pericardial	No	Yes	No	No
pericardiac	No	Yes	No	No

As adjectives, pericardial and pericardiac are synonyms defined as:

pericardial and pericardiac: located around the heart or relating to or affecting the pericardium

pericardial (adjective)	pericardiac (adjective)
located around the heart or relating to or affecting the pericardium	located around the heart or relating to or affecting the pericardium