pericardiocentesis

noun
peri·car·dio·cen·te·sis | \ ˌper-ə-ˌkärd-ē-ō-(ˌ)sen-ˈtē-səs \
plural pericardiocenteses\-ˌsēz \

Medical Definition of pericardiocentesis 

: surgical puncture of the pericardium especially to aspirate pericardial fluid

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