euphoria /yo̅o̅fôr″ē·ə/ [Gk, eu + pherein, to bear] , 1. a feeling or state of well-being or elation. 2. an exaggerated or abnormal sense of physical and emotional well-being not based on reality or truth, disproportionate to its cause, and inappropriate to the situation, as commonly seen in the manic stage of bipolar disorder, some forms of schizophrenia, organic mental disorders, and toxic and drug-induced states. Compare ecstasy.