An illness that involves the body, mood, and thoughts. It interferes with daily life, normal functioning, and causes pain for both the person with the disorder and those who care about him or her.
Depression is a mood disorder that causes a persistent feeling of sadness and loss of interest. Also called major depressive disorder or clinical depression, it affects how you feel, think and behave and can lead to a variety of emotional and physical problems. Depression ranges in seriousness from mild, temporary episodes of sadness to severe, persistent depression. Clinical depression is the more severe form of depression, also known as major depression or major depressive disorder. It isn't the same as depression caused by a loss, such as the death of a loved one, or a medical condition, such as a thyroid disorder. Definition. A depressive disorder is an illness that involves the body, mood, and thoughts. It interferes with daily life, normal functioning, and causes pain for both the person with the disorder and those who care about him or her. A depressive disorder is not the same as a passing blue mood. Definition of MAJOR DEPRESSIVE DISORDER. : a mood disorder having a clinical course involving one or more episodes of serious psychological depression lasting two or more weeks each with no intervening episodes of mania. ADVERTISEMENT. noun.
http://www.mayoclinic.org/diseases-conditions/depression/basics/definition/con-20032977 http://www.mayoclinic.org/diseases-conditions/depression/expert-answers/clinical-depression/FAQ-20057770 https://www.psychologytoday.com/conditions/depressive-disorders http://www.merriam-webster.com/dictionary/major%20depressive%20disorder
major depressive disorder definition psychology