-rēəm noun
( plural deliriums -mz ; also delir·ia -rēə)
Etymology: Latin, from delirare to be crazy, from de- + lira furrow, track — more at learn
1. : a transient mental disturbance that is characterized by confusion, disorientation, disordered speech, restlessness, excitement, and often delusions and hallucinations and sometimes occurs in the course of a mental illness but is usually associated with high fever, toxemia, or injury
2. : frenzied excitement or wild enthusiasm
the year was 1924, the great Florida land boom was just gathering delirium in the region of Sarasota — R.L.Taylor
also : an instance or expression of it
a veritable delirium of symbol hunting — Joseph Frank
Synonyms: see mania