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单词 placental
释义

placental

1 of 2

adjective

pla·​cen·​tal plə-ˈsen-tᵊl How to pronounce placental (audio)
1
: of, relating to, having, or occurring by means of a placenta
2
: eutherian

placental

2 of 2

noun

: a placental mammal : eutherian

Example Sentences

Recent Examples on the Web
Adjective
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 There are some biologics that can cross the placental barrier and potentially reach the fetus. Stephanie Watson, SELF, 21 Apr. 2022 Now researchers have identified genes that help to regulate placental embedding and may prove instructive in developing anticancer drugs, according to a new study in the Proceedings of the National Academy of Sciences USA. Carrie Arnold, Scientific American, 1 June 2022 The chemical makeup of placental tissue can’t be replicated synthetically. Andy Peters, ajc, 11 Apr. 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 Researchers in 12 countries, including the United States, analyzed placental and autopsy tissue from 64 stillbirths and four newborns who died shortly after birth. Lindsey Tanner, ajc, 10 Feb. 2022 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 2021 policy does, in fact, stress prenatal detection of rare diseases through methods such as testing placental samples. Johanna Deeksha, Quartz, 21 Jan. 2022
Noun
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 Origolestes is an ancestor to therian mammals, the group that includes all placentals and marsupials alive today. Jim Daley, Scientific American, 5 Dec. 2019 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 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 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 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 See More

Word History

First Known Use

Adjective

1785, in the meaning defined at sense 1

Noun

1839, in the meaning defined above

Medical Definition

placental 1 of 2

adjective

pla·​cen·​tal -əl How to pronounce placental (audio)
1
: of, relating to, having, involving, or produced by a placenta
placental lactogen
placental defects
2
: of or relating to placental mammals

placental

2 of 2

noun

: placental mammal
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更新时间:2024/12/23 10:00:45