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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.

The new vaccine was introduced in the UK in 2024 after clinical trials showed it could boost a pregnant woman's immune system enough to pass on protection to the baby through the placenta.

From BBC • Apr. 17, 2026

They have already been detected in breast milk and in the placenta -- and even in the brain.

From Science Daily • Dec. 22, 2025

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

Her placenta had weakened and she’d had a cesarean, though not quickly enough.

From "Interpreter of Maladies" by Jhumpa Lahiri




Vocabulary lists containing placenta