Term: Wall wart Your definition or explanation: One of the power supplies that you plug directly into the wall and then plug a small wire into an electronic device. It lowers the voltage from 110/220 down to 3-24 volts. Picture Example: It has an internal power supply, so you don't need a wall wart. One or more places you have seen the term: Amazon review of a gigabit switch. Have you looked for this term or meaning in dictionaries, and not found it? Yes __X__ No ___ The Amazon page was the first time I'd seen it, and it was so funny, yet obvious, it deserves recognition. If mods don't think it's appropriate, delete away. 601,000 hits with Google.