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peppered moth
noun
: a European geometrid moth (Biston betularia) that typically has white wings with small black specks but also occurs as a solid black form especially in areas where the air is heavily polluted by industry
Examples of peppered moth in a Sentence
Recent Examples on the Web
Their conclusions are backed up by other studies of evolution, such as in Darwin's finches, or the peppered moth.
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Nathaniel Scharping, Discover Magazine, 22 Feb. 2018
In 1848, a Manchester lepidopterist called R.L. Edleston caught a rare variety of the peppered moth, normally a pale, delicately ornamented creature.
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Cal Flyn, WSJ, 3 June 2021
After the Clean Air Acts of 1956 and 1968 were passed in the U.K., air quality improved, and the peppered moth slowly reverted to its paler form.
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Cal Flyn, WSJ, 3 June 2021
Evolutionary biologist’s posthumous publication restores peppered moth to iconic status as textbook example of evolution Ink Wants to Form Neurons, and an Artful Scientist Obliges Dinosaur tracks?
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Ed Yong, Discover Magazine, 5 May 2012
The peppered moth is a poster species for evolution by natural selection.
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Carl Engelking, Discover Magazine, 1 June 2016
Scientists have finally pinpointed the genetic mutation that made the peppered moth a Biology 101 fixture.
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Carl Engelking, Discover Magazine, 14 Dec. 2016
The peppered moth and the final experiment of Michael Majerus America to collide with Asia...
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Ed Yong, Discover Magazine, 18 Feb. 2012
Until recently, the most famous example of rapid evolution was the story of the peppered moth.
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Vaughn Cooper, Quartz, 10 Sep. 2021
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Word History
First Known Use
1766, in the meaning defined above
Dictionary Entries Near peppered moth
Cite this Entry
“Peppered moth.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/peppered%20moth. Accessed 8 Feb. 2025.
Kids Definition
peppered moth
noun
: a European moth that normally has white wings with small black specks but often has black wings in areas with heavy air pollution
More from Merriam-Webster on peppered moth
Britannica.com: Encyclopedia article about peppered moth
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