cloacinal
/ˌkləʊˈæsɪnəl/ (kloh-AY-sih-nul)
Definitions
1. adjective
relating to or resembling a cloaca, especially a type of intestine or canal in certain animals
“The cloacinal system in some birds is highly efficient at removing waste.”
2. noun
a cloacal organ or system
“The scientists studied the cloacinal anatomy of various species.”