astrobiology

noun

as·​tro·​bi·​ol·​o·​gy ˌa-strō-(ˌ)bī-ˈä-lə-jē How to pronounce astrobiology (audio)
astrobiologist noun

Examples of astrobiology 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.
News outlets received a cryptic message about a big press event, where officials would unveil something of great significance related to astrobiology and extraterrestrials. F.d. Flam, Twin Cities, 6 Aug. 2025 Again, this clearly is an area of astrobiology that needs attention. Bruce Dorminey, Forbes.com, 15 July 2025 Is this caution unique to the field of astrobiology? Oliver Swainston, Space.com, 28 June 2025 The discovery was hailed as a revolutionary development in astrobiology — for all of about five minutes. Keith Cooper, Space.com, 28 July 2025 See All Example Sentences for astrobiology

Word History

Etymology

astro- + biology

First Known Use

1898, in the meaning defined above

Time Traveler
The first known use of astrobiology was in 1898

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Cite this Entry

“Astrobiology.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/astrobiology. Accessed 29 Aug. 2025.

Medical Definition

astrobiology

noun
as·​tro·​bi·​ol·​o·​gy -(ˌ)bī-ˈäl-ə-jē How to pronounce astrobiology (audio)
plural astrobiologies

More from Merriam-Webster on astrobiology

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