n]| 1. | the act of depressing. |
| 2. | the state of being depressed. |
| 3. | a depressed or sunken place or part; an area lower than the surrounding surface. |
| 4. | sadness; gloom; dejection. |
| 5. | Psychiatry. a condition of general emotional dejection and withdrawal; sadness greater and more prolonged than that warranted by any objective reason. Compare clinical depression. |
| 6. | dullness or inactivity, as of trade. |
| 7. | Economics. a period during which business, employment, and stock-market values decline severely or remain at a very low level of activity. |
| 8. | the Depression. Great Depression. |
| 9. | Pathology. a low state of vital powers or functional activity. |
| 10. | Astronomy. the angular distance of a celestial body below the horizon; negative altitude. |
| 11. | Surveying. the angle between the line from an observer or instrument to an object below either of them and a horizontal line. |
| 12. | Physical Geography. an area completely or mostly surrounded by higher land, ordinarily having interior drainage and not conforming to the valley of a single stream. |
| 13. | Meteorology. an area of low atmospheric pressure. |