AMNIOCENTESIS
amniocentesis, amnio
(noun) (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
Source: WordNet® 3.1
Etymology
Noun
amniocentesis (plural amniocenteses)
(medicine) A procedure for obtaining amniotic fluid from a pregnant animal, by inserting a hollow needle through the abdominal wall and into the amniotic sac. Used in diagnosing possible genetic defects and/or obstetric complications.
Source: Wiktionary