hypomania[hī′pō mā′nē ə, -mān′yə; hip′ō-]
a mild form of mania, specif. of the manic phase of bipolar affective disorder
Origin of hypomaniahypo- + -mania
A mood disorder that is milder than mania and marked by symptoms of elevated or agitated mood, especially as a component of bipolar disorder.
From hypo- + -mania, after German Hypomanie.