Dictionary
per•i•to•ne•um
Pronunciation: (per"i-tn-ē'um), [key]—
n.,
—pl. -to•ne•ums, -to•ne•aPronunciation: (-tn-ē'u). [key]
Anat.
the serous membrane lining the abdominal cavity and investing its viscera.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.