gadget

Short definition from Wiktionary

Noun

1. 1
   A thing whose name cannot be remembered; thingamajig, doohickey.
2. 2
   Any device or machine, especially one whose name cannot be recalled, often either clever or complicated.
3. 3
   Any consumer electronics product.
4. 4
   A sequence of machine code instructions crafted as part of an exploit that attempts to divert execution to a memory location chosen by the attacker.
5. 5
   A technique for converting a part of one problem to an equivalent part of another problem, used in constructing reductions.
6. 6
   A spring clip attached to the end of a punty in order to grasp the foot of a glass without leaving a bullion while finishing the bowl.