| 1. | a person or thing that collects. |
| 2. | a person employed to collect debts, duties, taxes, etc. |
| 3. | a person who collects books, paintings, stamps, shells, etc., esp. as a hobby. |
| 4. | Electricity. a device for accumulating current from contact conductors. |
| 5. | Electronics. an electrode in a transistor or vacuum tube for collecting electrons, ions, or holes. |
| 6. | Metallurgy. promoter (def. 5). |
| 7. | Energy. solar collector. |