1. (

• depression

) a mental state characterized by a pessimistic sense of inadequacy and a despondent lack of activity ;

2. (

• depression ,
• slump ,
• economic_crisis

) a long-term economic state characterized by unemployment and low prices and low levels of trade and investment ;

3. (

• natural_depression ,
• depression

) a sunken or depressed geological formation ;

4. (

• depression

) sad feelings of gloom and inadequacy ;

5. (

• Depression ,
• Great_Depression

) a period during the 1930s when there was a worldwide economic depression and mass unemployment ;

6. (

• low ,
• depression ,

) an air mass of lower pressure; often brings precipitation; "a low moved in over night bringing sleet and snow" ;

7. (

• depressive_disorder ,
• clinical_depression ,
• depression ,

) a state of depression and anhedonia so severe as to require clinical intervention ;

8. (

• depression ,
• impression ,
• imprint

) a concavity in a surface produced by pressing; "he left the impression of his fingers in the soft mud" ;

9. (

• depression

) angular distance below the horizon (especially of a celestial object) ;

10. (

• depression ,

) pushing down; "depression of the space bar on the typewriter" ;