Before, the condition was popularly called manic depression. But now, it is called bipolar because of the two extreme poles that make up the condition. A good example is the globe having a north and a south pole. When an individual experiences different symptoms associated with one pole, then he's having an episode.
Depressive disorders are not new, in fact, for many years people suffered from it without getting any treatment. Millions of people at present are not even aware that they have the disorder.
The illness is better known as bipolar disorder. People suffering from this disease can compare their lives to a roller coaster ride. They experience tremendous highs and extreme lows.
Bipolar disorder is also called manic depressive illness where it can cause unusual mood shifts. You will see that your child has bipolar disorder if they shift from being unusually happy to being depressed or sad and back again to being happy happening almost instantly.
1) The condition of possessing two pole sets. In a conventional (non-FET) transistor, one pole set exists between the base and collector, and the other pole set exists between the base and emitter. 2) Speakers that consist of two driver arrays facing opposite directions and wired in electrical phase with one another to create a more diffuse soundstage.
of a cell or spore, at the two ends.
A processing technology for making discrete transistors and linear integrated circuits.
a semiconductor device that uses both holes and electrons for conduction simultaneously.
A relatively new type of speaker design that radiates sound to both the front and rear of the speaker cabinet at the same time in order to recreate the sense of space at a live event or in the case of a subwoofer in order to lower distortion and fill the room more evenly with bass.
A major mood disorder in which there are episodes of both mania and depression.
A signal range that includes both positive and negative values (for example, -5 V to +5 V).
An analog semiconductor process technology characterized by fast switching speeds at the expense of high power consumption. Bipolar transistors can also function as fast speed digital circuits.
The taking up of a stain at either end of a micro-organism while the central part remains clear. Members of the genus Pasteurella commonly exhibit bipolar staining.
An international system in which there are two dominant nation-states. bourgeoisie. A Marxist term referring to those who own the means of production.
A signaling method (in T1/E1 ) represents a binary "1" by alternating positive and negative pulses, and a binary "0" by absence of pulses.
of or relating to manic depressive illness 
of, pertaining to, or occurring in both polar regions; "the bipolar distribution of certain species" 
having two poles
Bipolar is Vanilla Ice's fifth album which consists of a heavy metal half and a rap half.