depression

noun

1. 1

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

   depression of the space bar on the typewriter

2. 2

   pushing down

   depression of the space bar on the typewriter

3. 3

   sad feelings of gloom and inadequacy

4. 4

   a sunken or depressed geological formation

5. 5

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

6. 6

   a concavity in a surface produced by pressing

   he left the impression of his fingers in the soft mud

7. 7

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

8. 8

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

9. 9

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

10. 10

    an air mass of lower pressure; often brings precipitation

    a low moved in over night bringing sleet and snow