n.
Pronunciation: ˌ per- ə -t ə - ' n ē - ə m
Function: noun
Inflected Form: plural -ne · ums \ - ' n ē - ə mz \ or -nea \ - ' n ē - ə \
Etymology: Middle English, from Late Latin, from Greek peritonaion, neuter of peritonaios stretched around, from peri- + teinein to stretch ― more at THIN
Date: 15th century
: the smooth transparent serous membrane that lines the cavity of the abdomen of a mammal and is folded inward over the abdominal and pelvic viscera
– peri · to · ne · al \ - ' n ē - ə l \ adjective
– peri · to · ne · al · ly \ - ə -l ē \ adverb