Bipolar disorder or manic-depressive disorder, also referred to as bipolar affective disorder or manic depression, is a psychiatric diagnosis that describes a category of mood disorders defined by the presence of one or more episodes of abnormally elevated energy levels, cognition, and mood with or without one or more depressive episodes. The elevated moods are clinically referred to as mania or, if milder, hypomania. Individuals who experience manic episodes also commonly experience depressive episodes, or symptoms, or mixed episodes in which features of both mania and depression are present at the same time.
Coulrophobia is an abnormal, irrational fear of clowns. The term is of recent origin, probably dating from the 1980s. The prefix "coulro-" may be derived from an Ancient Greek word meaning "stilt-walker", although the concept of a clown as a figure of fun was unknown in classical Greek culture.