peritoneal
adjective
peri·to·ne·al
variants:
or chiefly British peritonaeal \ ˌper-ət-ᵊn-ˈē-əl 
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Medical Definition of peritoneal
: of, relating to, or affecting the peritoneum
Other Words from peritoneal
peritoneally
or chiefly British peritonaeally \ -ə-lē
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adverb
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adverb