bioluminescence

noun

bio·​lu·​mi·​nes·​cence ˌbī-ō-ˌlü-mə-ˈne-sᵊn(t)s 

: 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

ˌbī-ō-ˌlü-mə-ˈne-sᵊnt 

adjective

Examples of bioluminescence in a Sentence

Recent Examples on the Web

Wisden said his business is the only one that consistently runs kayak tours to see the bioluminescence just inside the Cape Hatteras National Seashore. — Eva Flowe july 8, Charlotte Observer, 8 July 2026

The doc is a fascinating watch for anyone interested in myriad topics, from the ocean and bioluminescence (duh) to compelling real-life characters and even a little bit of undersea adventure. — Kate Erbland, IndieWire, 7 July 2026

The light is created by bioluminescence, a chemical reaction allowing the beetle to convert energy into light. — Mary Marlowe Leverette, Southern Living, 6 June 2026

The hotel can also arrange excursions to witness the bioluminescence at Laguna de Manialtepec. — Condé Nast, Condé Nast Traveler, 14 May 2026

Word History

Etymology

International Scientific Vocabulary

First Known Use

1916, in the meaning defined above

Rhymes for bioluminescence

• acquiescence
• adolescence
• coalescence
• convalescence
• effervescence
• efflorescence
• evanescence
• incandescence
• inflorescence
• iridescence
• luminescence
• obsolescence

Medical Definition

bioluminescence

noun

bio·​lu·​mi·​nes·​cence ˌbī-ō-ˌlü-mə-ˈnes-ᵊn(t)s 

: the emission of light from living organisms

also : the light so produced

bioluminescent

-ᵊnt 

adjective