1. A flat white square with two wires coming out of it, that, when hooked up to electricity, becomes hot on one side and cold on the other. Reversing the connections will swap the hot and cold sides. A solid-state heat pump. Found inside those iceless 12 volt coolers and on some overclocked computer chips. They are not usually used as a room air conditioner because they have a energy efficiency rating of less than 1, i.e. they generate more heat than they move. They have the advantages that there's no mechanical parts to break down, and no environmental issues with refrigerants such as the Freon used in a compressor, and they operate at 40dBa with fan instead of the 68 dBa of a commercial compressor with fan (read: much quieter)

2. A person's last name, so called because the first Peltiers used to collect pelts like fur trappers.
1. "My friend hooked up his peltier backwards, cooling his heatsink and heating his processor."

2. L. Peltier went out fur trapping with Phillipe Charmeoux back in the fairytale era.
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A kid who thinks that he is really good at Call of Duty, when in reality he is absolute garbage. Most of the times he will go negative in pub matches and god Forbid he go at least even in GB matches. Constantly needs to be carried and is basically worthless in any scenario and does not have the ability to clutch 1 single round. The only thing consistent about Matthew Peltier is his ability to blow GB matches and complete the simplest kill. Usually thinks its cool to buy GB accounts to make ones self look good....
Gee Wilikers Matthew Peltier, you had to go against that kid with that had no ammo, and you had an mp5, mind telling me how he killed you?
by FeaR Me October 18, 2009
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