noun, verb, -trapped, -trap⋅ping.| 1. | a trap for mice, esp. one consisting of a rectangular wooden base on which a metal spring is mounted. |
| 2. | a device, machine, or the like whose structure or function suggests a trap for mice. |
| 3. | a device, system, or stratagem for detecting and catching someone in an unauthorized or illegal act. |
| 4. | Football. trap 1 (def. 11). |
| 5. | Informal.
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| 6. | Football. trap 1 (def. 20). |
| 7. | build a better mousetrap, to make or offer a superior product. |