Definition of amniocentesis in English:

amniocentesis

Syllabification: am·ni·o·cen·te·sis
Pronunciation: /ˌamnē-ōsenˈtēsis
 
/

noun (plural amniocenteses /-sēz/)

Medicine
  • The sampling of amniotic fluid using a hollow needle inserted into the uterus, to screen for developmental abnormalities in a fetus.
    More example sentences
    • The whole process is called an amniocentesis, or amnio, in the vernacular.
    • In amniocentesis, the health care provider inserts a thin needle through the woman's abdomen.
    • Between the 15th and 18th weeks of pregnancy, the mother can also have an amniocentesis to screen for the Tay-Sachs gene.

Origin

1950s: from amnion + Greek kentēsis 'pricking' (from kentein 'to prick').

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