astrobiology

noun

as·​tro·​bi·​ol·​o·​gy ˌa-strō-(ˌ)bī-ˈä-lə-jē How to pronounce astrobiology (audio)
: exobiology
astrobiologist
ˌa-strō-(ˌ)bī-ˈä-lə-jist How to pronounce astrobiology (audio)
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.
Some people believe that astrobiology is just a catchy buzzword used to garner headlines and secure funding. — Big Think, 7 Aug. 2025 Repurposing that vintage kit for in-depth astrobiology was difficult—not least of all because of how hard the resulting data were to work with. — Jacek Krywko, Scientific American, 30 Sep. 2025 Research and writing on astrobiology help scientists flex their imaginations and expand their horizons in the search for extraterrestrial life. — Joanna Thompson, Space.com, 19 Mar. 2026 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 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

Rhymes for astrobiology

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Browse Nearby Words

astro-
astrobiology
astrobleme
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Cite this Entry

“Astrobiology.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/astrobiology. Accessed 7 Jul. 2026.

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Medical Definition

astrobiology

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

More from Merriam-Webster on astrobiology

Britannica.com: Encyclopedia article about astrobiology

Last Updated: - Updated example sentences
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