amnio

noun

am·​nio ˈam-nē-ō 

plural amnios

: amniocentesis

Some doctors apparently feel that after an amnio, a mother's stress could be more dangerous to the fetus than one glass of wine.

—Rebecca Bidwell

Doctors already frequently offer younger women blood tests that don't definitively diagnose Down syndrome like an amnio or a similar invasive test called chorionic villus sampling—but that can signal who's at higher risk.

—Lauran Neergaard

The results of the amnio made it official: the fetus inside Ms. Doe was not genetically related to her or her husband.

—Tracy Connor

Examples of amnio in a Sentence

Recent Examples on the Web

But many declined to get an amnio, even after a prenatal screening suggested their baby might have Down syndrome. — Michelle Sie Whitten, STAT, 25 June 2026

More than halfway through her pregnancy, the amnio results arrived. — Anna Clark, ProPublica, 6 Dec. 2022

Guests in line get a look at the ride's high-tech research lab to see an avatar in its growth state inside an amnio tank. — Sara Stewart, CNN, 26 May 2017

Word History

First Known Use

1983, in the meaning defined above

Medical Definition

amnio

noun

am·​nio

ˈam-nē-ō

: amniocentesis