genetic drift

noun

Definition of genetic drift

: random changes in gene frequency especially in small populations when leading to preservation or extinction of particular genes

Recent Examples of genetic drift from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'genetic drift.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of genetic drift

1945


Medical Dictionary

genetic drift

noun

medical Definition of genetic drift

: random changes in gene frequency especially in small populations when leading to preservation or extinction of particular genes

Learn More about genetic drift


Seen and Heard

What made you want to look up genetic drift? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

investment of mental or emotional energy

Get Word of the Day daily email!

Test Your Vocabulary

Odd Habits and Quirks Quiz

  • image1926873504
  • Which of the following best describes an easily irritated person?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!