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luciferin

American  
[loo-sif-er-in] / luˈsɪf ər ɪn /

noun

Biochemistry.
  1. a pigment occurring in bioluminescent organisms, such as fireflies, that emits light when undergoing oxidation.


luciferin British  
/ luːˈsɪfərɪn /

noun

  1. biochem a substance occurring in bioluminescent organisms, such as glow-worms and fireflies. It undergoes an enzyme-catalysed oxidation and emits light on decaying to its ground state

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of luciferin

First recorded in 1885–90; from Latin lūcifer ( see Lucifer) + -in 2

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.

See Examples For:

Both sets of organisms stabilize luciferin by adding sulfur to its chemical structure, even though the sulfur-adding proteins are very different, she has found.

From Science Magazine Aug. 24, 2022

The team say that is important as the process involves a luciferin produced from a chemical that is naturally present in plants – caffeic acid.

From The Guardian Apr. 27, 2020

Like many bioluminescent animals their light is created by a reaction between the light-emitting molecule luciferin and the enzyme luciferase.

From National Geographic Jun. 30, 2018

“An enzyme, luciferase, and a substrate, luciferin, are held in tiny bags called vesicles inside the cell,” he said.

From New York Times Nov. 7, 2011

But I’m ninety-nine percent sure he has no idea what luciferin is.

From "The Last Cuentista" by Donna Barba Higuera

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