preterm

adjective

pre·​term (ˌ)prē-ˈtərm How to pronounce preterm (audio)
ˈprē-ˌtərm
: of, relating to, being, or brought forth by premature birth
a preterm infant
preterm labor

Examples of preterm in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Congenital syphilis can cause a range of adverse outcomes including fetal or neonatal death, preterm birth, low birthweight, and brain and nerve disorders. Theresa Gaffney, STAT, 27 Jan. 2026 Ozone and particle pollution can cause premature death and other health effects, including asthma attacks, heart attacks, strokes, preterm birth and impaired cognitive function, according to the American Lung Association. Maya Wilkins, Chicago Tribune, 17 Jan. 2026 Closing education and access gaps can reduce risks, especially for communities facing high rates of preterm birth and poor outcomes. Hannah Nwoko, Parents, 4 Jan. 2026 Using the March of Dimes grading criteria for preterm birth rate, California had a B- and Orange County a B in 2023. Teri Sforza, Oc Register, 4 Jan. 2026 See All Example Sentences for preterm

Word History

First Known Use

1928, in the meaning defined above

Time Traveler
The first known use of preterm was in 1928

Browse Nearby Words

Cite this Entry

“Preterm.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/preterm. Accessed 2 Feb. 2026.

Medical Definition

preterm

adjective
pre·​term -ˈtərm How to pronounce preterm (audio)
: of, relating to, being, or born by premature birth
preterm infants
a preterm delivery
preterm labor
Last Updated: - Updated example sentences
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