heat-shield
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heat shield
noun Aerospace.
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.
Origin:
1955–60
1955–60
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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Based on the Random House Dictionary, © Random House, Inc. 2013.
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Link To heat-shield
Collins
World English Dictionary
| heat shield | |
| —n | |
| a coating or barrier for shielding from excessive heat, such as that experienced by a spacecraft on re-entry into the earth's atmosphere | |
Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
00:10
Heat-shield
is always a great word to know.
So is slumgullion. Does it mean:
| a stew of meat, vegetables, potatoes, etc. |
| a screen or mat covered with a dark material for shielding a camera lens from excess light or glare. |
American Heritage
Science Dictionary
| heat shield
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. |
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
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