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The emission of visible light by certain living organisms, such as the firefly and various fish, marine invertebrates, fungi, and bacteria. Bioluminescence is caused by chemical reactions.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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|Adj.||1.||bioluminescent - (of living organisms) emitting light; "fireflies are bioluminescent"|
organism, being - a living thing that has (or can develop) the ability to act or function independently
light - characterized by or emitting light; "a room that is light when the shutters are open"; "the inside of the house was airy and light"
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