bio luminescent

bioluminescence

[bahy-oh-loo-muh-nes-uhns]
noun
the production of light by living organisms.

Origin:
1915–20; bio- + luminescence

bioluminescent, adjective
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World English Dictionary
bioluminescence (ˌbaɪəʊˌluːmɪˈnɛsəns)
 
n
the production of light by living organisms as a result of the oxidation of a light-producing substance (luciferin) by the enzyme luciferase: occurs in many marine organisms, insects such as the firefly, etc
 
biolumi'nescent
 
adj

Collins English Dictionary - Complete & Unabridged 10th Edition
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Etymonline
Word Origin & History

bioluminescence
from bio- + luminescence. Bioluminescent (adj.) is from 1929.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Science Dictionary
bioluminescence   (bī'ō-l'mə-něs'əns)  Pronunciation Key 
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. Compare chemiluminescence.
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