Amniocentesis

1 definition found

From WordNet (r) 2.0 [wn]:

  amniocentesis
       n : (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 [syn: {amnio}]
       [also: {amniocenteses} (pl)]