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English definition of “amniocentesis”

amniocentesis

noun [U or S]     /ˌæm.ni.əʊ.senˈtiː.sɪs/ US  /-oʊ-/
a medical test in which a needle is used to remove a small amount of the liquid that surrounds a baby in the mother's womb in order to examine the baby's condition PregnancyBirth
(Definition of amniocentesis noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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