staggered terms. Membership terms for a firm's directors that expire in different years. A firm with 12 directors might have 4-year terms with 3 seats up for election each year. Staggered terms make it more difficult for a raider to gain control of a board.
Definition of mood disorder. : any of several psychological disorders (as major depressive disorder or bipolar disorder) characterized by abnormalities of emotional state âcalled also affective disorder.
Mood Disorders. Mood disorders include major depressive disorder, dysthymic disorder, and bipolar disorder. 1  Approximately 20.9 million American adults, or about 9.5 percent of the U.S. population age 18 and older in a given year, have a mood disorder. 2  The median age of onset for mood disorders is 30 years.ood Disorders. Mood disorders include major depressive disorder, dysthymic disorder, and bipolar disorder. 1  Approximately 20.9 million American adults, or about 9.5 percent of the U.S. population age 18 and older in a given year, have a mood disorder. 2  The median age of onset for mood disorders is 30 years.