At its height, your own management career had the bipolarity of Cher on one side and Joan Rivers on the other.
The theory of bipolarity receives no support from the study of the fishes.
"having two poles," from bi- + polar; 1810 with figurative sense of "of double aspect;" 1859 with reference to physiology. Psychiatric use in reference to what had been called manic-depressive psychosis is said to have begun 1957 with German psychiatrist Karl Leonhard. The term became popular early 1990s. Bipolar disorder was in DSM III (1980).
bipolar bi·po·lar (bī-pō'lər)
Having two poles; used especially of nerve cells in which the branches project from two usually opposite points.
Of or relating to both ends or poles of a bacterial or other cell.
Of or relating to a major affective disorder that is characterized by episodes of mania and depression.