a coating or structure that surrounds part of the nose cone or other vulnerable surfaces of a spacecraft and, by heat absorption or ablation, protects them from excessive heating during reentry.
a coating or barrier for shielding from excessive heat, such as that experienced by a spacecraft on re-entry into the earth’s atmosphere
A barrier that prevents a substance from absorbing heat energy from an outside source by absorbing and dissipating, or simply reflecting, that heat. Heat shields are commonly used to protect parts of a device from heat generated by its energy source, as in isolating the cabin of a car from its motor. Many spacecraft dissipate heat generated by friction with the atmosphere upon reentry using heat shields that melt and vaporize, dissipating the energy back into the atmosphere.
adjective 1. (of a detecting device) able to detect sources of infrared radiation: a heat-seeking camera 2. (of a missile) able to detect and follow a source of heat, as from an aircraft engine: a heat-seeking missile
- Heat slug
hardware, processor A metal plate that helps dissipate heat away from the silicon core of a processor to the packaging or heat-sink. (2000-08-26)
noun 1. Thermodynamics. any environment or medium that absorbs heat. 2. Also, heatsink. Electronics. a metallic heat exchanger designed to absorb and dissipate excess heat from one of the devices, as a transistor or resistor, in a circuit. noun 1. a metal plate specially designed to conduct and radiate heat from an electrical component 2. […]
[heet-strohk] /ˈhitˌstroʊk/ noun 1. a disturbance of the temperature-regulating mechanisms of the body caused by overexposure to excessive , resulting in fever, hot and dry skin, and rapid pulse, sometimes progressing to delirium and coma. /ˈhiːtˌstrəʊk/ noun 1. a condition resulting from prolonged exposure to intense heat, characterized by high fever and in severe cases […]