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
Though early studies found a correlation between Tylenol use during pregnancy and autism, a landmark 2024 study comparing siblings who were and were not exposed to Tylenol in utero largely debunked the link.
—
Sasha Rogelberg, Fortune, 22 Sep. 2025
Other nongenetic factors, such as premature birth or birth by cesarean section, maternal diabetes and exposure to air pollution or certain antiseizure drugs in utero have been shown to increase a person’s risk of autism in some studies.
—Allison Parshall, Scientific American, 22 Sep. 2025
Siblings share a large part of their genetic background and often have similar environmental exposures in utero and at home.
—Erika Edwards, NBC news, 22 Sep. 2025
For those of you who don't know what that is, we are fed through an umbilical cord in utero.
—Kimi Robinson, USA Today, 12 Aug. 2025
See All Example Sentences for in utero
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Sasha Rogelberg, Fortune, 22 Sep. 2025
Other nongenetic factors, such as premature birth or birth by cesarean section, maternal diabetes and exposure to air pollution or certain antiseizure drugs in utero have been shown to increase a person’s risk of autism in some studies.
—Allison Parshall, Scientific American, 22 Sep. 2025
Siblings share a large part of their genetic background and often have similar environmental exposures in utero and at home.
—Erika Edwards, NBC news, 22 Sep. 2025
For those of you who don't know what that is, we are fed through an umbilical cord in utero.
—Kimi Robinson, USA Today, 12 Aug. 2025
See All Example Sentences for in utero
Cite this Entry
“In utero.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/in%20utero. Accessed 7 Oct. 2025.
Copy CitationMedical 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 exposure—Burgess v. Eli Lilly & Co., 995 F.2d 646 (1993)
Burgess v. Eli Lilly & Co., 995 F.2d 646 (1993)Etymology
Latin
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