Top Definition
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.
by Braveheart's thirst for blood August 20, 2006

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

The Urban Dictionary Mug

Your favorite word on a white mug.

Create a mug

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug

The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

Buy the t-shirt

The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt