paracentesis

noun
para·​cen·​te·​sis | \ ˌpar-ə-(ˌ)sen-ˈtē-səs How to pronounce paracentesis (audio) \
plural paracenteses\ -​ˌsēz How to pronounce paracenteses (audio) \

Medical Definition of paracentesis

: a surgical puncture of a bodily cavity (as of the abdomen) with a trocar, aspirator, or other instrument usually to draw off an abnormal effusion for diagnostic or therapeutic purposes

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