Definition of cardiologist noun from the Oxford Advanced American Dictionary

 

cardiologist

 noun
noun
NAmE//ˌkɑrdiˈɑlədʒɪst//
 
 
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a doctor who studies and treats heart diseases
NAmE//ˌkɑrdiˈɑlədʒi//
 
noun [uncountable]
See the Oxford Advanced Learner's Dictionary entry: cardiologist