bioluminescence

noun

bio·​lu·​mi·​nes·​cence ˌbī-ō-ˌlü-mə-ˈne-sᵊn(t)s How to pronounce bioluminescence (audio)
: the emission of light from living organisms (such as fireflies, dinoflagellates, and bacteria) as the result of internal, typically oxidative chemical reactions
also : the light so produced
bioluminescent adjective

Examples of bioluminescence 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.
Witnessing bioluminescence can feel like a rare treat because bioluminescent organisms are difficult to observe. Nina Turner, Newsweek, 30 Oct. 2024 Scientists estimated that fireflies evolved aerial bioluminescence, the ability to glow during flight, at least 100 million years ago in a July 2022 study that analyzed the first Mesozoic firefly fossil that was described in 2015. Taylor Nicioli, CNN, 24 Oct. 2024 Coyne has amassed a large online following from his striking photos and videos, but also his willingness — and dedication — to find and share when and where the bioluminescence light shows are on display. Grace Toohey, Los Angeles Times, 22 Oct. 2024 This timeline for developing bioluminescence makes sense, say Quattrini and Widder, who both note that rudimentary light sensors also developed around this time. Meghan Bartels, Scientific American, 23 Apr. 2024 See all Example Sentences for bioluminescence 

Word History

Etymology

International Scientific Vocabulary

First Known Use

1916, in the meaning defined above

Time Traveler
The first known use of bioluminescence was in 1916

Dictionary Entries Near bioluminescence

Cite this Entry

“Bioluminescence.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/bioluminescence. Accessed 21 Nov. 2024.

Medical Definition

bioluminescence

noun
bio·​lu·​mi·​nes·​cence ˌbī-ō-ˌlü-mə-ˈnes-ᵊn(t)s How to pronounce bioluminescence (audio)
: the emission of light from living organisms
also : the light so produced
bioluminescent adjective

More from Merriam-Webster on bioluminescence

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!