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.
Levels of pTau217 appeared to decrease as both preterm infants grew older and by about 20 weeks after birth reached the levels found among healthy young adults. Robert Martone, Scientific American, 10 Oct. 2025 Researchers found a drastic drop in evictions and fewer preterm births and neonatal intensive care unit admissions. Nushrat Rahman, Freep.com, 6 Oct. 2025 Henderson works at one of only a few facilities in the state staffed with specialists to deliver and treat preterm babies. Katia Riddle, NPR, 2 Oct. 2025 Some studies have shown that use of the medication at various stages of pregnancy can impact the fetal kidneys and the possibility of high blood pressure in the lungs, preterm delivery or low birth weight. Max Rego, The Hill, 23 Sep. 2025 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

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Cite this Entry

“Preterm.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/preterm. Accessed 22 Oct. 2025.

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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