amniocentesis

POS

Noun

HYPHEN

am=ni=o=cen=te=sis

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WORDNET DICTIONARY

Noun amniocentesis has 1 sense

amniocentesis(n = noun.act) 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; Array

is a kind of prenatal diagnosis, centesis

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OXFORD DICTIONARY

amniocentesis, n. (pl. amniocenteses) Med. the sampling of amniotic fluid by insertion of a hollow needle to determine the condition of an embryo.

Etymology

AMNION + Gk kentesis pricking f. kento to prick

For further exploring for "amniocentesis" in Webster Dictionary Online