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leucism

American  
[loos-iz-uhm] / ˈlusˌɪz əm /

noun

  1. Zoology. in some animals, abnormally pale or blotchy coloring caused by a genetic mutation that reduces pigment in the skin, hair, feathers, or scales.


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Example Sentences

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White penguins are rare because leucism is a recessive gene, and they may be more vulnerable to predators due to being more easily seen.

From BBC Jan. 14, 2024

Those animals had a genetic condition called leucism, which blocks skin cells from producing pigments.

From National Geographic Aug. 23, 2023

Though unusual, leucism in moose isn’t unheard of.

From Washington Post Jan. 18, 2023

A deer can be born all white through two primary genetic mutations, albinism and leucism.

From Washington Times Apr. 14, 2018

The two white giraffes in Kenya — spotted by rangers at the Hirola Conservation Program in early August — have a genetic condition called leucism.

From The Verge Sep. 17, 2017

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