proliferate
verb
Did you know?
Proliferate is a back-formation of proliferation. That means that proliferation came first (we borrowed it from French in the 1700s), and was later shortened to form the verb. Proliferation originally referred to the botanical phenomenon of some plants having buds, flowers, or other parts that are adventitious—that is, that arise or occur sporadically or in other than the usual location (e.g. pitch pines’ ability to sprout new trees directly from their stumps after a fire). With advances in the study of biology in the 1800s, proliferation came to be used to refer to the rapid and repeated production of cells by division. That sense in turn begat the verb proliferate, which eventually came to be used when anything—whether living (such as yeast) or nonliving (such as data)—quickly increases or multiplies.
Examples of proliferate in a Sentence
Adam Echelman, Los Angeles Times, 22 Feb. 2026
These kinds of bans have proliferated.
—Elizabeth Weise, USA Today, 21 Feb. 2026
Kennedy has made no bones about his misplaced skepticism of mRNA vaccines, pinging off the proliferating conspiracies around the COVID vaccines — incredible innovations that saved countless lives during one of the worst global catastrophes in recent memory.
—The Orlando Sentinel, 21 Feb. 2026
Charters proliferated in Chicago in the 2000s under then-Mayor Richard Daley, who championed the model as a vehicle for education reform and expanded school choice.
—Kate Armanini, Chicago Tribune, 21 Feb. 2026
See All Example Sentences for proliferate
Cite this Entry
“Proliferate.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/proliferate. Accessed 25 Feb. 2026.
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proliferate
verb
Medical Definition
proliferate
verb
