heat shield

noun

: 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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Using gas as an insulator for spacecraft could replace traditional, single-use heat shields that burn away or the heat-resistant ceramic tiles that need to be replaced between flights, making spacecraft more fully and rapidly reusable, according to a statement from Texas A&M University. Samantha Mathewson, Space.com, 11 May 2025 During the flight, the Orion spacecraft was found to have heat shield issues upon reentry forcing some adjustments to its planned trajectory. Brooke Edwards, USA Today, 2 May 2025 SpaceX's Starship has an advanced heat shield, made up of approximately 18,000 hexagonal tiles. Eileen Falkenberg-Hull, MSNBC Newsweek, 1 May 2025 Phoenix 1 was tasked with demonstrating some key reentry tech, such as the capsule's inflatable heat shield. Mike Wall, Space.com, 29 Apr. 2025 See All Example Sentences for heat shield

Word History

First Known Use

1962, in the meaning defined above

Time Traveler
The first known use of heat shield was in 1962

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Cite this Entry

“Heat shield.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/heat%20shield. Accessed 19 May. 2025.

Kids Definition

heat shield

noun
: a barrier of insulation to protect a space capsule from heat on its return to earth
Last Updated: - Updated example sentences
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