: 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.
Research highlights how occupational heat exposure can double adverse birth outcomes, with heat acting as a fetal toxin, while fine particulate matter contributes to preterm births and low birth weight. Catarina Rolfsdotter-Jansson, Forbes.com, 22 Aug. 2026 Abbott Laboratories has agreed to pay $670 million to resolve some of the litigation surrounding its preterm infant formula. Jeff Marks, CNBC, 21 Aug. 2026 Some preterm babies who drink only breast milk also develop the disease. Lisa Schencker, Chicago Tribune, 20 Aug. 2026 Pregnant women face higher risks of miscarriage and preterm birth. Kathy Baughman McLeod, Time, 4 Aug. 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

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Cite this Entry

“Preterm.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/preterm. Accessed 1 Sep. 2026.

Medical Definition

preterm

adjective
: of, relating to, being, or born by premature birth
preterm infants
a preterm delivery
preterm labor
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