Definition of heat shield
: a barrier of ablative material to protect a space capsule from heat on its entry into an atmosphere
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Recent Examples of heat shield from the Web
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The engines also have a new heat shielding to protect them from the high temperatures during the plunge through the atmosphere.
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Ask the manufacturer to install heat shields in cabinets that will be located next to the oven.
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Yet there’s just enough atmosphere that descending vehicles still need some kind of heat shield to keep from burning up.
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Polaris received ten reports of heat shield incidents, including five reports of fires, the CPSC said.
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In addition, the CPSC charged that between December 2013 and July 2016, Polaris received 36 reports of fires associated with 2014 Rangers, and made two design changes to the Rangers to prevent the heat shields from becoming loose and falling off.
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But inflatable heat shields can get unwieldy when falling from high heights.
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Before the shuttle docks with the other craft, the space station crew examines the shuttle's bottom heat shield.
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The balloon might refer to something like NASA’s HIAD system (Hypersonic Inflatable Aerodynamic Decelerator), which is a heat shield that inflates upon reentry.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'heat shield.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use of heat shield
1962
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