ret·ro·per·i·to·ne·al 
(rĕt′rō-pĕr′ĭ-tn-ēəl)
(rĕt′rō-pĕr′ĭ-tn-ēəl)adj.
Situated behind the peritoneum.
- spring
- spring a leak
- spring beauty
- springboard
- springbok
- springbuck
- spring chicken
- spring-cleaning
- springe
- spring ephemeral
- springer
- springerle
- springer spaniel
- spring fever
- Springfield
- Springfield rifle
- springform pan
- springhare
- springhead
- springhouse
- springily
- springiness
- springing
- springing line
- springlet