micrometeoroid

noun

mi·​cro·​me·​te·​or·​oid ˌmī-krō-ˈmē-tē-ə-ˌrȯid How to pronounce micrometeoroid (audio)

Examples of micrometeoroid in a Sentence

Recent Examples on the Web One of the telescope’s 18 hexagonal mirrors took a nasty strike from a micrometeoroid, but that had limited impact. Joel Achenbach, Washington Post, 12 July 2024 On those lengthy missions, the top risk to the spacecraft and its crew will be potential damage from collisions with space debris or micrometeoroids, small fragments of rock and dust coming toward Earth from the Solar System. Stephen Clark, Ars Technica, 6 May 2024 The Apollo landers and the Apollo rovers are still sitting on the lunar surface and have been probably bombarded by micrometeoroids, space dust flying around, definitely bombarded by radiation from the sun and cosmic sources. Sarah Matusek, The Christian Science Monitor, 31 Jan. 2024 Russian engineers determined the leak was most likely caused by an impact from a tiny fragment of rock from deep space, called a micrometeoroid, which ruptured a coolant line and sent a spray of snowflake-like particles into space as the Soyuz remained docked at the station. Stephen Clark, Ars Technica, 27 Sep. 2023 See all Example Sentences for micrometeoroid 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'micrometeoroid.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1954, in the meaning defined above

Time Traveler
The first known use of micrometeoroid was in 1954

Dictionary Entries Near micrometeoroid

Cite this Entry

“Micrometeoroid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/micrometeoroid. Accessed 26 Jul. 2024.

More from Merriam-Webster on micrometeoroid

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!