What is a Gadget?

According to Wikipedia 'Gadget' can mean:

* A gadget or gizmo – a device that has a useful specific purpose and function.
* The first atomic bomb was nicknamed the gadget by the scientists of the Manhattan Project, tested at the Trinity site.
* Gadget (full name: Gadget Hackwrench) is a character on the cartoon Chip 'n Dale Rescue Rangers.
* Inspector Gadget is a cartoon character in the eponymous TV series and the series of live action movies based on it.
* GADGET is an after-school club at Glenbrook North High School that participates in many NASA competitions.

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There, I'm glad we've clarified that point!