peritoneocentesis
noun
peri·to·neo·cen·te·sis
| \ ˌper-ət-ᵊn-ˌē-ō-ˌsen-ˈtē-səs
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plural peritoneocenteses\ -ˌsēz
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Medical Definition of peritoneocentesis
: surgical puncture of the peritoneal cavity to obtain fluid