in utero

adverb or adjective

: in the uterus : before birth
a disease acquired in utero
an in utero diagnosis

Examples of in utero 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.
The review assessed 74 total studies, and concluded that exposure to fluoride levels above 1.5 mg/L in utero or infancy is associated with a dose-dependent reduction in childhood IQ of a few points. Lauren Leffer, Popular Science, 9 Apr. 2025 Exposure to bad air in utero is associated with a higher risk of autism, and exposure in childhood has been linked to behavioral and cognitive problems, including lower IQ. Zoë Schlanger, The Atlantic, 9 Apr. 2025 Bricker was born without legs due to a uterine band cutting off the blood supply to her lower limbs in utero. Colson Thayer, People.com, 29 Mar. 2025 Thyroxine was also abnormally low in those with in utero phthalate exposure, and low thyroxine has been previously associated with greater vulnerability to illness and neurodevelopmental issues in newborns, the authors said. Kristen Rogers, CNN Money, 2 Apr. 2025 See All Example Sentences for in utero

Word History

Etymology

Latin

First Known Use

1713, in the meaning defined above

Time Traveler
The first known use of in utero was in 1713

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Cite this Entry

“In utero.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/in%20utero. Accessed 21 Apr. 2025.

Medical Definition

in utero

adverb or adjective
: in the uterus : before birth
a disease acquired in utero
an in utero diagnosis

Legal Definition

in utero

adverb or adjective
: in the uterus : before birth
an injury suffered in utero
that her condition could possibly be linked to in utero exposureBurgess v. Eli Lilly & Co., 995 F.2d 646 (1993)
Etymology

Latin

Last Updated: - Updated example sentences
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