,noun, verb, trapped, trap⋅ping.| 1. | a contrivance used for catching game or other animals, as a mechanical device that springs shut suddenly. |
| 2. | any device, stratagem, trick, or the like for catching a person unawares. |
| 3. | any of various devices for removing undesirable substances from a moving fluid, vapor, etc., as water from steam or cinders from coal gas. |
| 4. | Also called air trap. an arrangement in a pipe, as a double curve or a U-shaped section, in which liquid remains and forms a seal for preventing the passage or escape of air or of gases through the pipe from behind or below. |
| 5. | traps, the percussion instruments of a jazz or dance band. |
| 6. | Trapshooting, Skeet. a device for hurling clay pigeons into the air. |
| 7. | the piece of wood, shaped somewhat like a shoe hollowed at the heel, and moving on a pivot, used in playing the game of trapball. |
| 8. | the game of trapball. |
| 9. | trap door. |
| 10. | Sports. an act or instance of trapping a ball. |
| 11. | Also called mousetrap, trap play. Football. a play in which a defensive player, usually a guard or tackle, is allowed by the team on offense to cross the line of scrimmage into the backfield and is then blocked out from the side, thereby letting the ball-carrier run through the opening in the line. |
| 12. | Slang. mouth: Keep your trap shut. |
| 13. | Chiefly British. a carriage, esp. a light, two-wheeled one. |
| 14. | to catch in a trap; ensnare: to trap foxes. |
| 15. | to catch by stratagem, artifice, or trickery. |
| 16. | to furnish or set with traps. |
| 17. | to provide (a drain or the like) with a trap. |
| 18. | to stop and hold by a trap, as air in a pipe. |
| 19. | Sports. to catch (a ball) as it rises after having just hit the ground. |
| 20. | Football. to execute a trap against (a defensive player). |
| 21. | to set traps for game: He was busy trapping. |
| 22. | to engage in the business of trapping animals for their furs. |
| 23. | Trapshooting, Skeet. to work the trap. |

trap 1 (trāp) n.
v. tr.
[Middle English, from Old English træppe.] |
web (wěb) n.
[Middle English, from Old English; see webh- in Indo-European roots.] Usage Note: The word Web is usually capitalized when referring to the World Wide Web: Many sites on the Web have information about used cars. In this use, however, the word is increasingly found lowercase, and this usage may become dominant. See Usage Note at website. |
trap
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trap
1. A program interrupt, usually an interrupt caused by some exceptional situation in the user program. In most cases, the OS performs some action, then returns control to the program.
2. To cause a trap. "These instructions trap to the monitor." Also used transitively to indicate the cause of the trap. "The monitor traps all input/output instructions."
This term is associated with assembler programming ("interrupt" or "exception" is more common among HLL programmers) and appears to be fading into history among programmers as the role of assembler continues to shrink. However, it is still important to computer architects and systems hackers (see system, sense 1), who use it to distinguish deterministically repeatable exceptions from timing-dependent ones (such as I/O interrupts).
[The Jargon File]