abdominal Syllabification: (ab·dom·i·nal)Pronunciation: /abˈdämənl/Translate abdominal | into German | into Italian Definition of abdominal adjective relating to the abdomen:abdominal pain noun (usually abdominals) an abdominal muscle. Derivatives abdominally adverb abdominal in other Oxford dictionaries Definition of abdominal in the British & World English dictionary