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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
Exposure to lead in utero, infancy and early childhood can lead to harmful neurological effects like learning and behavior disabilities and lowered IQ.
—Kate Gibson, CBS News, 6 Jan. 2025
Hours and days were logged as though the act of articulating existence might increase its bioavailability to a person stuck in utero.
—Molly Young, New York Times, 30 Dec. 2024
The rare brain malformation occurs in utero and is incurable, just like Stage 4 liver cirrhosis.
—Daniel Gonzalez, The Arizona Republic, 15 Dec. 2024
There are windows in utero and early life where pollution exposure or metal metabolism are most important, long before autism itself is diagnosable.
—Lauren Leffer, Popular Science, 27 Nov. 2024
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Word History
Etymology
Latin
First Known Use
1713, in the meaning defined above
Dictionary Entries Near in utero
Cite this Entry
“In utero.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/in%20utero. Accessed 18 Jan. 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 exposure—Burgess v. Eli Lilly & Co., 995 F.2d 646 (1993)
Etymology
Latin
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