Definition of "water-block" [water-block]

• A hollow block, usually of iron, copper, or bronze, cooled by circulation of water in its interior, and used for forming parts of furnaces. (noun)

The Century Dictionary (Public Domain)

• "While the air-cooled models retain NVIDIA's reference design, the Hydro Copper series models sport a full-coverage, copper-rich water-block made for EVGA by Swiftech."
• "EVGA GeForce GTX 480 FTW Hydro Copper (015-P3-1489-AR): 750/1500/950 MHz, Hydro Copper water-block pre-fitted, US $649.99"
• "• EVGA GeForce GTX 480 FTW Hydro Copper (015-P3-1489-AR): 750/1500/950 MHz, Hydro Copper water-block pre-fitted, US $649.99"