American English

Definition of cardiac adjective from the Oxford Advanced American Dictionary

 

cardiac

 adjective
adjective
NAmE//ˈkɑrdiˌæk//
 
[only before noun] (medical)
 
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connected with the heart or heart disease cardiac disease/failure/surgery to suffer cardiac arrest (= an occasion when a person's heart stops temporarily or permanently)
See the Oxford Advanced Learner's Dictionary entry: cardiac