delirium tremens Syllabification: (de·lir·i·um tre·mens)Pronunciation: /diˈli(ə)rēəm ˈtrēmənz/Definition of delirium tremens noun a psychotic condition typical of withdrawal in chronic alcoholics, involving tremors, hallucinations, anxiety, and disorientation. Origin: early 19th century: from Latin, 'trembling delirium'delirium tremens in other Oxford dictionaries Definition of delirium tremens in the British & World English dictionary