Pronunciation: (di-lēr'ē-um), [key]
—pl. -lir•i•ums, -lir•i•aPronunciation: (-lēr'ē-u). [key]
1. Pathol.a more or less temporary disorder of the mental faculties, as in fevers, disturbances of consciousness, or intoxication, characterized by restlessness, excitement, delusions, hallucinations, etc.
2. a state of violent excitement or emotion.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.