amniocentesis (n.) Look up amniocentesis at Dictionary.com
name of a diagnostic technique involving the withdrawing of amniotic fluid by hypodermic needle, 1958, Modern Latin, from amnion + centesis "surgical puncture involving a puncture," from Latinized form of Greek kentesis "a pricking," from kentein "to prick," from PIE root *kent- "to prick, jab" (see center (n.)).