depression

Noun
  1. is a type of: mental condition, mental state, psychological condition, psychological state - (psychology) a mental condition in which the qualities of a state are relatively constant even though the state itself may be dynamic
    subtypes:
  2. is a type of:
    specific instances: great depression - the economic crisis beginning with the stock market crash in 1929 and continuing through the 1930s
    same as: economic crisis, slump
  3. is a type of: formation, geological formation - (geology) the geological features of the earth
    subtypes:
    • basin - a natural depression in the surface of the land often with a lake at the bottom of it
    • bed, bottom - a depression forming the ground under a body of water
    • crater - a bowl-shaped depression formed by the impact of a meteorite or bomb
    • hole, hollow - a depression hollowed out of solid matter
    • lowland - low level country
    • sink, sinkhole, swallow hole - a depression in the ground communicating with a subterranean passage (especially in limestone) and formed by solution or by collapse of a cavern roof
    • deep, oceanic abyss, trench - a long steep-sided depression in the ocean floor
    • trough - a narrow depression (as in the earth or between ocean waves or in the ocean bed)
    • vale, valley - a long depression in the surface of the land that usually contains a river
    same as: natural depression
  4. is a type of: sadness, unhappiness - emotions experienced when not in a state of well-being
    subtypes:
  5. is an instance of: age, historic period - an era of history having some distinctive feature
    same as: great depression
  6. is a type of: air mass - a large body of air with uniform characteristics horizontally
    is a part of: cyclone - (meteorology) rapid inward circulation of air masses about a low pressure center; circling counterclockwise in the northern hemisphere and clockwise in the southern
    same as: low
  7. is a type of: affective disorder, emotional disorder, emotional disturbance, major affective disorder - any mental disorder not caused by detectable organic abnormalities of the brain and in which a major disturbance of emotions is predominant
    subtypes:
    • agitated depression - a state of clinical depression in which the person exhibits irritability and restlessness
    • anaclitic depression - severe and progressive depression in infants who lose their mother and do not get a suitable substitute
    • dysthymia, dysthymic depression - mild chronic depression
    • endogenous depression - a state of depression for which there is no apparent precipitating cause
    • exogenous depression, reactive depression - an inappropriate state of depression that is precipitated by events in the person's life (to be distinguished from normal grief)
    • major depressive episode - (psychiatry) a state of depression with all the classic symptoms (anhedonia and lethargy and sleep disturbance and despondency and morbid thoughts and feelings of worthlessness and sometimes attempted suicide) but with no known organic dysfunction
    • neurotic depression - a term used for any state of depression that is not psychotic
    • psychotic depression - a state of depression so severe that the person loses contact with reality and suffers a variety of functional impairments
    • retarded depression - a state of clinical depression in which the individual is lethargic and slow to initiate action
    same as: clinical depression, depressive disorder
  8. is a type of: concave shape, concavity, incurvation, incurvature - a shape that curves or bends inward
    subtypes:
    same as: impression, imprint
  9. is a type of: angular position - relation by which any position with respect to any other position is established
  10. is a type of: push, pushing - the act of applying force in order to move something away
    subtypes: click, mouse click - depression of a button on a computer mouse

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