1943, in the meaning defined above
Keep scrolling for more
Time Traveler for interpopulation
See more words from the same year
Cite this Entry
“Interpopulation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/interpopulation. Accessed 28 Feb. 2021.
Comments on interpopulation
What made you want to look up interpopulation? Please tell us where you read or heard it (including the quote, if possible).
See Definitions and Examples »
Get Word of the Day daily email!
February 2021 Words of the Day Quiz
Test your vocabulary with our 10-question quiz!
Spell words. Make bears.
Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!
Words from the week of 2/26/2021
From ideals to friendships
Words from the week of 2/19/2021
Rest on them, but not for too long
We're intent on clearing it up
We're gonna stop you right there
How to use a word that (literally) drives some pe...
The awkward case of 'his or her'
Our most challenging yet!
How many of these commonly confused words do you ...