How to Use placental in a Sentence

placental

1 of 2 adjective
Definition of placentalnext
  • But in the human embryo knockouts, placental cells and yolk sac cells also failed to form.
    — Gretchen Vogel, Science | AAAS, 20 Sep. 2017
  • But evidence is scant as to whether the virus can cross the placental barrier to infect the fetus.
    — Linda Marsa, Discover Magazine, 30 June 2020
  • The study team also looked at placental tissue collected at the time of birth for some of the participants.
    — Katie Hunt, CNN, 16 Nov. 2021
  • By stopping this activation, the researchers managed to cure the placental defects in some of the mouse embryos.
    — Joshua Rapp Learn, Discover Magazine, 6 July 2022
  • Now, researchers have devised a way to derive and observe early precursors of placental cells in a dish.
    — Kelly Servick, Science | AAAS, 30 Sep. 2020
  • His team found evidence for this theory: In one of the biopsies, the researchers observed placental cells with three copies of chromosome 10 — two from the mother and one from the father.
    — Quanta Magazine, 8 Apr. 2021
  • These types of sharks even have a placental connection similar to the umbilical cord of a mammal.
    — Clare Mulroy, USA TODAY, 18 Apr. 2023
  • In contrast, placental mammals, which give birth to live offspring, have young that start out relatively large.
    — Michael D. D'emic, Scientific American, 1 Sep. 2023
  • In the same year, Teigen wrote in an essay explaining that doctors diagnosed her with a partial placental abruption.
    — Charles Trepany, USA TODAY, 3 Aug. 2022
  • The new treatment is made from placental tissue that has been ground into a powder, added to a liquid solution and injected at the source of osteoarthritis.
    — Andy Peters, ajc, 11 Apr. 2022
  • To measure telomere length, the researchers extracted DNA from each baby's cord blood and placental tissue.
    — Susan Scutti, CNN, 16 Oct. 2017
  • There was her placental abruption, a rare condition where part of the placenta separates from the abdominal wall, which led to bed rest.
    — Patia Braithwaite, SELF, 30 Sep. 2019
  • Because of this, the animals are likely to more clearly show effects of atrazine that might be happening more subtly in placental mammals, Graves says.
    — Corryn Wetzel, National Geographic, 9 Sep. 2020
  • In a Medium post on Tuesday, Teigen explained that her doctors had diagnosed her with a partial placental abruption.
    — NBC News, 1 Oct. 2020
  • The report said the spike protein in coronavirus is the same as another spike protein called syncytin-1, which is involved in placental growth during pregnancy.
    — Carmina Tiscareño, Dallas News, 4 Feb. 2021
  • Quake compared the activity of genes found in the mother’s blood, which included the proteins, enzymes and other products made by the mother’s genes, placental genes and fetal genes.
    — Alice Park, Time, 7 June 2018
  • Disabling the same gene in mouse embryos gives different results: Those embryos became balls of mostly placental cells.
    — Marissa Fessenden, Smithsonian, 21 Sep. 2017
  • For this study, researchers from 12 countries, including the U.S., looked at placental tissue from 64 stillbirths and four newborns who died shortly after birth.
    — Julie Mazziotta, PEOPLE.com, 11 Feb. 2022
  • The baby, who was subsequently delivered early, had not been getting oxygen due to a placental abruption caused by the crash, the affidavit said.
    — Jacob Beltran, San Antonio Express-News, 18 Mar. 2022
  • The woman had suffered a placental abruption and had to be rushed into an emergency cesarean section.
    — Bracey Harris, NBC News, 18 Nov. 2023
  • Celularity is exploring the use of placental stem cells to replace or repair defective genes at the heart of major diseases.
    — Robin L. Smith, WSJ, 24 May 2021
  • As the continents drifted apart, beginning about 100 million years ago, placental mammals adapted to their new surroundings and new species emerged.
    — Karen Weintraub, USA TODAY, 27 Apr. 2023
  • To figure out how chromosomes of placental mammals have changed over time, researchers need to know what those early eutherians started with.
    — Elizabeth Pennisi, Science | AAAS, 19 June 2017
  • The same stress hormones that speed up the placental clock also trigger the immune system to release inflammatory chemicals that tell the body to attack itself.
    — Mark Johnson, Milwaukee Journal Sentinel, 23 Aug. 2021
  • There are some biologics that can cross the placental barrier and potentially reach the fetus.
    — Stephanie Watson, SELF, 21 Apr. 2022
  • And in the new essay, Teigen says she was diagnosed with a partial placental abruption during this time, a rare but serious condition in which the placenta separates from the inner lining of the uterus.
    — Sarah Jacoby, SELF, 27 Oct. 2020
  • About a month ahead of her due date, Sophie experienced a placental abruption and had an emergency cesarean section.
    — Jacqueline Weiss, Peoplemag, 3 May 2023
  • Further research needs to be done to evaluate the long-term effectiveness of treatments using placental extracts.
    — Shalwah Evans, Essence, 16 Oct. 2019
  • Placental mammals all develop inside a uterus, drawing blood from their mothers.
    — Carl Zimmer, The Seattle Times, 11 Aug. 2017
  • This second test is more invasive, and involves taking samples of fetal or placental tissue.
    — Clayton Dalton, The New Yorker, 16 Sep. 2020
Advertisement

placental

2 of 2 noun
  • Because the navel is a scar from where the umbilical cord connected the fetus to the placenta, all placental mammals have them.
    — Sarah Leupen, The Conversation, 5 Apr. 2023
  • For example, the specific type of placental cell where Zika can lurk in humans isn't thought to be present in mouse placentas.
    — latimes.com, 10 June 2019
  • For example, the specific type of placental cell where Zika can lurk in humans isn’t thought to be present in mouse placentas.
    — Washington Post, 9 June 2019
  • The complication, known as placental abruption, can lead to stillbirth.
    — Maira Garcia, Los Angeles Times, 5 May 2023
  • The maternal transmission via the placental bloodflow to the fetus differs from the maternal transmission of ingested breast milk to the infant.
    — Nina Shapiro, Forbes, 4 Mar. 2021
  • The researchers reported that the Zika virus binds consistently to a protein in different placental cells called TIM1.
    — Pam Belluck, New York Times, 18 July 2016
  • While baby placental and marsupial mammals start with bones made of a fast-growing, messy-looking tissue called woven bone, over time different bone types grow around that scaffold.
    — Riley Black, Smithsonian Magazine, 26 Oct. 2022
  • Origolestes is an ancestor to therian mammals, the group that includes all placentals and marsupials alive today.
    — Jim Daley, Scientific American, 5 Dec. 2019
  • There are two main types of placental abruption: partial, in which the placental only partially separates from the uterus, and complete—and those classifications will also dictate treatment.
    — Claire Gillespie, Health.com, 28 Oct. 2020
  • To do so, the researchers isolated special placental cells called trophoblasts from human placentas that were terminated at six to nine weeks’ gestation for medical reasons with ethical approval.
    — Roni Dengler, Discover Magazine, 29 Nov. 2018
  • There are three kinds of mammals: egg-laying monotremes such as the platypus, marsupials like kangaroos and opossums, and the majority—placental, or eutherian, mammals—including humans and about 4400 other mammal species.
    — Elizabeth Pennisi, Science | AAAS, 19 June 2017
  • Some investigators think that malnutrition and faulty placental function may change the way a baby's genes direct its development during pregnancy—but the mechanics that underlie this process are unknown.
    — Adrian Erlebacher, Scientific American, 1 Oct. 2017
  • Each increase of 5 micrograms per cubic meter in exposure was associated with 9% shorter cord blood telomeres and 13% shorter placental telomeres, the researchers estimated.
    — Susan Scutti, CNN, 16 Oct. 2017
  • Untangling the genealogical relationships of these archaic placentals is challenging.
    — Steve Brusatte, Scientific American, 1 June 2022
  • Because the navel is a scar from where the umbilical cord connected the fetus to the placenta, all placental mammals have them.
    — Sarah Leupen, The Conversation, 5 Apr. 2023
  • For example, the specific type of placental cell where Zika can lurk in humans isn't thought to be present in mouse placentas.
    — latimes.com, 10 June 2019
  • For example, the specific type of placental cell where Zika can lurk in humans isn’t thought to be present in mouse placentas.
    — Washington Post, 9 June 2019
  • The complication, known as placental abruption, can lead to stillbirth.
    — Maira Garcia, Los Angeles Times, 5 May 2023
  • The maternal transmission via the placental bloodflow to the fetus differs from the maternal transmission of ingested breast milk to the infant.
    — Nina Shapiro, Forbes, 4 Mar. 2021
  • The researchers reported that the Zika virus binds consistently to a protein in different placental cells called TIM1.
    — Pam Belluck, New York Times, 18 July 2016
  • While baby placental and marsupial mammals start with bones made of a fast-growing, messy-looking tissue called woven bone, over time different bone types grow around that scaffold.
    — Riley Black, Smithsonian Magazine, 26 Oct. 2022
  • Origolestes is an ancestor to therian mammals, the group that includes all placentals and marsupials alive today.
    — Jim Daley, Scientific American, 5 Dec. 2019
  • There are two main types of placental abruption: partial, in which the placental only partially separates from the uterus, and complete—and those classifications will also dictate treatment.
    — Claire Gillespie, Health.com, 28 Oct. 2020
  • To do so, the researchers isolated special placental cells called trophoblasts from human placentas that were terminated at six to nine weeks’ gestation for medical reasons with ethical approval.
    — Roni Dengler, Discover Magazine, 29 Nov. 2018
  • There are three kinds of mammals: egg-laying monotremes such as the platypus, marsupials like kangaroos and opossums, and the majority—placental, or eutherian, mammals—including humans and about 4400 other mammal species.
    — Elizabeth Pennisi, Science | AAAS, 19 June 2017
  • Some investigators think that malnutrition and faulty placental function may change the way a baby's genes direct its development during pregnancy—but the mechanics that underlie this process are unknown.
    — Adrian Erlebacher, Scientific American, 1 Oct. 2017
  • Each increase of 5 micrograms per cubic meter in exposure was associated with 9% shorter cord blood telomeres and 13% shorter placental telomeres, the researchers estimated.
    — Susan Scutti, CNN, 16 Oct. 2017
  • Untangling the genealogical relationships of these archaic placentals is challenging.
    — Steve Brusatte, Scientific American, 1 June 2022

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

Last Updated: