Medical Definition of BIPOLAR DISORDER. : any of several mood disorders characterized usually by alternating episodes of depression and mania or by episodes of depression alternating with mild nonpsychotic excitementâcalled also bipolar affective disorder, bipolar illness, manic depression, manic-depressive illness, manic-depressive psychosis; ....efinition of BIPOLAR DISORDER. : any of several psychological disorders of mood characterized usually by alternating episodes of depression and mania âcalled also manic depression, manic-depressive illness.
Algebra is a powerful and rich branch of mathematics that is useful in everyday life as well as business, engineering, and other technical fields.
Pre-algebra is a common name for a course in middle school mathematics. In the United States, pre-algebra is usually taught in the 7th grade. The objective of pre-algebra is to prepare the student for the study of algebra. Pre-algebra includes several broad subjects: