Also found in: Thesaurus, Medical, Acronyms, Encyclopedia.
Related to amnio: amniotic fluid
n. pl. am′ni·os
(Gynaecology & Obstetrics) short for amniocentesis
n., pl. -ni•os.
Switch to new thesaurus
|Noun||1.||amnio - (pregnancy) extraction by centesis of amniotic fluid from a pregnant woman (after the 15th week of pregnancy) to aid in the diagnosis of fetal abnormalities|
prenatal diagnosis - any of the diagnostic procedures used to determine whether a fetus has a genetic abnormality
centesis - (surgery) the act of puncturing a body cavity or organ with a hollow needle in order to draw out fluid