amniotic

American

[am-nee-ot-ik] / ˌæm niˈɒt ɪk /

Also amnionic

adjective

Anatomy, Zoology.

of, relating to, or having an amnion.

amniotic British

/ ˌæmnɪˈɒtɪk /

adjective

of or relating to the amnion

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

postamniotic

adjective

Etymology

Origin of amniotic

First recorded in 1815–25; amni(on) + -otic

Vocabulary lists containing amniotic

Animals (Zoology) - High School

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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.

See Examples For:

amniotic

Caitlin and Grace had been believed to be fraternal twins because they developed in different amniotic sacs, but doctors found their markers were exactly the same while assessing Grace as a potential stem cell donor.

From BBC ● Jul. 1, 2026

All morning, she watched the amniotic fluid drain out of her.

From Salon ● May 27, 2026

Then came the worst part: I passed the amniotic sac.

From The Wall Street Journal ● May 13, 2026

Izabela, 30, was at a hospital in Pszczyna, in southern Poland, after her amniotic fluid broke.

From Barron's ● Mar. 3, 2026

Leonard Hayflick had an especially personal connection with his cell line, WISH, which Gartler had listed as contaminated: he’d grown it using cells from the amniotic sac in which his unborn daughter had once floated.

From "The Immortal Life of Henrietta Lacks" by Rebecca Skloot

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023