say it: per-ee-toh-NEE-uhl
peritoneal is an adjective meaning "of or relating to or affecting the peritoneum". It carries one recorded sense.
of or relating to or affecting the peritoneum
“peritoneal cancer”
Definitions, synonyms and semantic relations for peritoneal come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.