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

placental

2 of 2

noun

: a placental mammal : eutherian

Examples of placental in a Sentence

Recent Examples on the Web
Adjective
This would save their life, but could cause placental abruption, uterine bleeding, premature labor or fetal death. Pauline Wiltz, Scientific American, 27 June 2024 Viviparous sharks are either placental or aplacental, according to the Florida Museum of Natural History. Olivia Munson, USA TODAY, 19 Mar. 2024
Noun
Mammals Diversified Much More Rapidly 66 Million Years Ago Observing Mammalian Species Mammals are divided into three groups: placentals, marsupials, and monotremes. Jack Knudson, Discover Magazine, 10 Jan. 2024 The early evolution of mammals is a little bit murky, with some placental mammals even likely living alongside dinosaurs and others arising much later. Laura Baisas, Popular Science, 4 Apr. 2024 See all Example Sentences for placental 

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.

Word History

First Known Use

Adjective

1785, in the meaning defined at sense 1

Noun

1839, in the meaning defined above

Time Traveler
The first known use of placental was in 1785

Dictionary Entries Near placental

Cite this Entry

“Placental.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/placental. Accessed 15 Jul. 2024.

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
Last Updated: - Updated example sentences
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