bioluminescence
Americannoun
noun
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The emission of light by living organisms, such as fireflies, glowworms, and certain fish, jellyfish, plankton, fungi, and bacteria. It occurs when a pigment (usually luciferin) is oxidized without giving off heat. Although it is believed that bioluminescence is involved in animal communication, its function in many organisms has yet to be understood. Bioluminescence is a form of chemiluminescence.
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Compare chemiluminescence
Other Word Forms
- bioluminescent adjective
Etymology
Origin of bioluminescence
First recorded in 1915–20; bio- + luminescence
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Moore noted that scientists have discussed using bioluminescence to study brain activity for decades, but until now, no one had succeeded in making the light bright enough for detailed imaging.
From Science Daily
The robot searched through her computer brain and found words like plankton and bioluminescence.
From Literature
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Many species in the deep sea have developed adaptations like bioluminescence or large eyes that help them navigate the dark waters.
From Salon
The mollusk lights up using bioluminescence when threatened to distract predators, researchers said.
From Los Angeles Times
Scientists believe that algae use bioluminescence as a defense mechanism — to scare off hungry sea creatures or call attention to their location, which draws the predators’ predators.
From Los Angeles Times
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.