\in-ˈyü-tə-ˌrō \

Definition of in utero 

: 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

Selah and Shylah were given a 5 to 25% chance of survival in utero alone, which prompted early questions of termination. Sarah Schreiber, Good Housekeeping, "Twin Girls Who Were Conjoined at the Stomach Celebrate 2nd Birthday," 27 Oct. 2016 Early life, including in utero, is a particularly vulnerable period. Richard G. "bugs" Stevens, Washington Post, "Bright lights near bedtime can cause sleep problems in children," 19 May 2018 At week 35 of gestation, the brain is in a critical period of development in utero. Fiza Pirani, ajc, "Infants born just one month premature more likely to develop ADHD, study finds," 26 June 2018 In October, Trump visited a treatment center for infants suffering from neonatal abstinence syndrome, a collection of symptoms caused by being exposed to addictive drugs in utero. Pamela Ren Larson, azcentral, "All eyes on Melania Trump's attire for expected Arizona visit," 28 June 2018 When they’re born, panda cubs are 1/900 the size of the mother, making detection in utero quite the challenge. Katherine J. Wu, Smithsonian, "A Primer on the Zoo’s Possibly Pregnant Giant Panda," 28 June 2018 Davis is hoping the same is true for newborns who are born dependent on opioids because they were exposed in utero. Alice Park, Time, "Many Doctors Give Morphine to Babies Born With Opioid Addiction. A New Study Suggests There's a Better Way," 18 June 2018 This typically happens in utero when a one fraternal twin dies and is absorbed by the other. Susannah Cahalan, Fox News, "You can actually have two sets of DNA," 4 June 2018 The baby suffered a broken leg in utero as a result of the accident but a cast wrapped around her leg allowed her to stand by the next day. Rafael Guerrero, Naperville Sun, "Orphaned newborn deer rescued by Naperville police, animal control," 31 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'in utero.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of in utero

1713, in the meaning defined above

History and Etymology for in utero



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Last Updated

4 Oct 2018

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The first known use of in utero was in 1713

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More Definitions for in utero

\in-ˈyüt-ə-ˌrō \

Medical Definition of in utero 

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

\in-ˈyü-tə-rō \

Legal Definition of in utero 

: 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)

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