How to Use amniotic sac in a Sentence

amniotic sac

noun
  • En caul is the term used when a baby is born inside the still-intact amniotic sac.
    — Vanessa Etienne, PEOPLE.com, 9 Mar. 2022
  • Kallan was born en caul, an extremely rare type of birth where the baby is still in the amniotic sac.
    — Kayla Grant, PEOPLE, 1 June 2026
  • With an amniotic sac birth being so uncommon, one in a car must be even rarer.
    — Jason Duaine Hahn, PEOPLE.com, 31 Aug. 2017
  • These sensors are inserted through the uterus and reside in the amniotic sac.
    — IEEE Spectrum, 13 Dec. 2018
  • This means that each baby has their own placenta and amniotic sac, rather than sharing with each other.
    — Alyce Collins, Newsweek, 11 Mar. 2025
  • One of their amniotic sacs had ruptured, while the other baby was in the breech position.
    — Paloma Chavez, PEOPLE, 6 May 2026
  • Doctors began to think that Ezra had moved in such a way to act as a plug to the hole in Wally's amniotic sac.
    — Nicole Villalpando, USA TODAY, 25 Dec. 2024
  • The amniotic sac had been exposed, and there was a serious risk of infection to the mother and the fetus.
    — Jon Michaud, The New Yorker, 15 Aug. 2019
  • ZaNiyah slid onto planet Earth still encased in the amniotic sac — and without a pulse.
    — Hannah Natanson, Washington Post, 24 Dec. 2019
  • The scans found that her uterus was empty, but a nearly full-term fetus in an amniotic sac was hiding in a small space in her abdomen, near her liver.
    — Laura Ungar The Associated Press, Arkansas Online, 28 Dec. 2025
  • Doctors determined that her amniotic sac had ruptured; the fetus would not survive outside the womb.
    — Rachel Monroe, The New Yorker, 7 Sep. 2022
  • For example, in rare cases an infection can make the amniotic sac rupture before the fetus is viable.
    — New York Times, 26 Nov. 2021
  • MoMo or mono-mono twins are identical twins who develop in a single amniotic sac and share a placenta.
    — Pamela Prindle Fierro, Parents, 30 July 2024
  • Her amniotic sac wasn’t properly fused, and the doctors worried that a needle might tent the membrane without pushing through, or that there might be a rupture.
    — Eric Boodman, STAT, 29 Sep. 2022
  • The doctor explained to them that the babies were in the same amniotic sac which is a very rare type of twins and fraught with potential complications for the pregnancy.
    — Carol Robinson | [email protected], al, 24 Mar. 2021
  • Known as a porcupette (read more about the names for baby animals), the baby is born with all its quills but also wrapped in the amniotic sac that smooths the little one’s arrival.
    — Patricia Edmonds, National Geographic, 2 July 2020
  • And that's not to mention the baby in the portable amniotic sac, which also apparently lives inside Reedus' throat and gives a thumbs up at one point.
    — Kyle Orland, Ars Technica, 8 Dec. 2017
  • During this procedure, a healthcare provider will manually sweep their finger between the membranes that connect the amniotic sac to the wall of the uterus.
    — Jessica Migala, Health, 13 Feb. 2023
  • The amniotic sac and the fluid inside it cushion and shield the baby during pregnancy, according to Time.
    — Health.com, 31 Aug. 2017
  • Mary suspects that, during a pregnancy exam, a technician punctured her amniotic sac.
    — Lawrence Wright, The New Yorker, 28 Dec. 2020
  • An American buffalo, or bison, was running along the road with her amniotic sac protruding from her belly.
    — Alicia Victoria Lozano, NBC News, 26 June 2024
  • Because the boys are fraternal twins with separate amniotic sacs, Ezra was expected to survive.
    — Nicole Villalpando, USA TODAY, 25 Dec. 2024
  • The syndrome is rare; strands of the amniotic sac separate and entangle digits, limbs, or other parts of the developing fetus.
    — Paulina Dedaj, Fox News, 28 Apr. 2018
  • At the foot of his deathbed, another monolith looms over his decrepit body, and he is transformed into a fetus in an amniotic sac, hovering over the Earth with his eyes wide open.
    — Brian P. Kelly, WSJ, 6 Apr. 2018
  • The fetus would not be viable outside the womb, and without the protection of the amniotic sac, the woman was vulnerable to an infection that could threaten her life.
    — New York Times, 20 July 2022
  • Her algorithm is based on gestational age; maternal risk factors, such as when the amniotic sac ruptured; and the infant's clinical exam.
    — Marla Broadfoot, Science | AAAS, 5 Apr. 2018
  • By injecting the missing protein into the amniotic sac at the right time in the fetuses’ development, the doctors restored the trio’s ability to sweat.
    — Jessica McDonald, Discover Magazine, 10 Dec. 2018
  • When Griffin was in his mother's womb with his twin brother, Seahawks cornerback Shaquil, the amniotic sac wrapped around Shaquem's wrist.
    — Daniel Rapaport, SI.com, 8 Mar. 2018
  • If the split is delayed, usually a week or so after conception, the processes of growing a placenta, chorion, and amniotic sac are already underway.
    — Pamela Prindle Fierro, Parents, 30 July 2024
  • The 28-year-old was born with amniotic band syndrome, a rare condition in which fibrous bands from the amniotic sac become tangled around parts of the developing fetus.
    — Jordan Greene, People.com, 3 Jan. 2025

Some of these examples are programmatically compiled from various online sources to illustrate current usage of the word 'amniotic sac.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

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