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Definitions

placenta

[pluh-sen-tuh] / pləˈsɛn tə /


NOUN
membrane
Synonyms


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

"This finding also reinforces our commitment to developing antidepressants that do not reach the placenta -- a focus of many of our studies right now."

From Science Daily • Mar. 17, 2026

Although scientists once believed that the placenta was a tight, impermeable barrier separating mother and child, that’s not true.

From The Wall Street Journal • Nov. 4, 2025

As tradition dictated, her placenta was hurled into the Huangpu River; when it floated away, it was deemed that she too “would be raised and fed, only to drift away.”

From Los Angeles Times • Oct. 17, 2025

He also uploaded a shot of Vick's placenta, alongside images appearing to show the organ being de-hydrated and turned into pills.

From BBC • Aug. 4, 2025

The only exposure of the infant mice to urethane was prenatal in these experiments, proving that the chemical must have passed through the placenta.

From "Silent Spring" by Rachel Carson