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.
Apart from overcoming the problems that afflicted the last two launches, one of the most important objectives for this flight is to test the performance of Starship's heat shield. John Timmer, ArsTechnica, 22 May 2025 Another key goal was to deploy and test the inflatable heat shield under real reentry conditions. Kurt Knutsson, FOXNews.com, 18 May 2025 Unexpected damage to Orion's heat shield caused by atmospheric reentry during Artemis 1 is to blame for the long wait time between Artemis 1 and Artemis 2. Josh Dinner, Space.com, 5 May 2025 This requires heat shields to protect the rocket from overheating, which are not fully reusable. Eileen Falkenberg-Hull, MSNBC Newsweek, 1 May 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

Browse Nearby Words

Cite this Entry

“Heat shield.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/heat%20shield. Accessed 9 Jun. 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
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!