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macromutation

American  
[mak-roh-myoo-tey-shuhn] / ˌmæk roʊ myuˈteɪ ʃən /

noun

Genetics.

  1. a mutation that has a profound effect on the resulting organism, as a change in a regulatory gene that controls the expression of many structural genes.

Etymology

Origin of macromutation

macro- + mutation

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.

I had not discovered a macromutation.

From Literature

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.