heat shield

noun

Definition of heat shield

: a barrier of ablative material to protect a space capsule from heat on its entry into an atmosphere

Examples of heat shield in a Sentence

Recent Examples on the Web The lunar module, their lifeboat, had no heat shield and would be useless in re-entry. Ashley Strickland, CNN, "Apollo 13 astronauts and flight controllers reflect on a 'successful failure'," 13 Apr. 2020 The impact could have caused the capsule to tumble, or damaged its heat shield. Kenneth Chang, New York Times, "Boeing Starliner Flight’s Flaws Show ‘Fundamental Problem,’ NASA Says," 6 Mar. 2020 Embedded in the heat shield are five peepholes of varying sizes that will stay open just long enough for the science instruments to take measurements in X-ray, ultraviolet, visible and other wavelengths. NBC News, "Solar Orbiter blasts off to capture first look at sun's poles," 10 Feb. 2020 Embedded in the heat shield are five peepholes of varying sizes that will stay open just long enough for the science instruments to take measurements in X-ray, ultraviolet, visible and other wavelengths. Washington Post, "Solar Orbiter blasts off to capture 1st look at sun’s poles," 10 Feb. 2020 The two spacecraft could’ve even bumped into each other, in which case the impact could have damaged the heat shield. Marina Koren, The Atlantic, "NASA Will Only Tolerate So Much Danger," 10 Feb. 2020 About 60 seconds into the procedure, the Starliner capsule jettisoned its heat shield and deployed airbags to soften the landing still further. Meghan Bartels, Scientific American, "Boeing’s Next-Generation Starliner Vehicle Passes Major Safety Test," 4 Nov. 2019 Three peepholes in the heat shield will open for 10 days at a time to allow the instruments to collect data. Kenneth Chang, New York Times, "We’ve Never Seen the Sun’s Top or Bottom. Solar Orbiter Will Change That.," 10 Feb. 2020 As the probe ripped through Jupiter's upper atmosphere at 106,000 mph, would its heat shield withstand temperatures twice that of the surface of the sun ... Phoebe Wall Howard, Detroit Free Press, "Ford's secret weapon has a passion for batteries and came from NASA," 4 Mar. 2020

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.

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First Known Use of heat shield

1962, in the meaning defined above

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The first known use of heat shield was in 1962

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Last Updated

14 Jun 2020

Cite this Entry

“Heat shield.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/heat%20shield. Accessed 3 Jul. 2020.

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