Depression - Definition

n 1: a mental state characterized by a pessimistic sense of
inadequacy and a despondent lack of activity [ant:
elation]
2: a long-term economic state characterized by unemployment and
low prices and low levels of trade and investment [syn:
depression, slump, economic crisis]
3: a sunken or depressed geological formation [syn: natural
depression, depression] [ant: elevation, natural
elevation]
4: sad feelings of gloom and inadequacy
5: a period during the 1930s when there was a worldwide economic
depression and mass unemployment [syn: Depression, Great
Depression]
6: an air mass of lower pressure; often brings precipitation; "a
low moved in over night bringing sleet and snow" [syn: low,
depression]
7: a state of depression and anhedonia so severe as to require
clinical intervention [syn: depressive disorder, clinical
depression, depression]
8: a concavity in a surface produced by pressing; "he left the
impression of his fingers in the soft mud" [syn:
depression, impression, imprint]
9: angular distance below the horizon (especially of a celestial
object)
10: pushing down; "depression of the space bar on the
typewriter"