Heatsink, thermal design, heat pipe, thermal conductivity, thermal design

A heat sink (or heatsink) is an object that absorbs and dissipates heat. Heat sinks are used in a wide range of applications (such as LED design) wherever efficient heat dissipation is required. Heat sinks are made of metal or alloy, which usually includes a combination of aluminum and copper.

https://www.futureelectronics.com/p/electromechanical--thermal-management--heatsinks-accessories/530002b02500g-aavid-6333348