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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.

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

These genes relate to enzymes that convert caffeic acid, through a series of steps, into a luciferin that emits energy as light, before turning the resulting substance back into 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

His focus was on a class of compounds, luciferin, that are bioluminescent.

From New York Times • May 12, 2013

“There’s remnant luciferin on this plant life,” I say, telling the truth.

From "The Last Cuentista" by Donna Barba Higuera

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