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.
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 Pioneering physiologist Joseph Barcroft famously compared the oxygen levels any fetus receives to Everest in utero—Everest in the uterus. Tim Vernimmen, Smithsonian Magazine, 21 Mar. 2025 Since the twins are so young, this is likely a reflection of the health of their mother, as all of their nutrition would stem from her, whether in utero or through breast milk, researchers said. Irene Wright, Miami Herald, 13 Mar. 2025 This waste was spread around the town through mud and dust, which the mothers inhaled while their babies were in utero. Ct Jones, Rolling Stone, 4 Mar. 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

Browse Nearby Words

Cite this Entry

“In utero.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/in%20utero. Accessed 15 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
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!