centesis - (surgery) the act of puncturing a body cavity or organ with a hollow needle in order to draw out fluidpuncture - the act of puncturing or perforating amnio, amniocentesis - (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 thoracocentesis - removal of fluid from the chest by centesis for diagnostic or therapeutic purposes surgery - the branch of medical science that treats disease or injury by operative procedures; "he is professor of surgery at the Harvard Medical School" |