anorectous
/ˌænəˈrɛktəs, -ˈrɛktəs/Definitions
1. adjective
having no rectum or anus; lacking a rectal opening
“The anorectous worm was studied by scientists to understand its unique digestive system.”
2. noun
a person or animal that is anorectous
“The anorectous species is a subject of interest in the field of zoology.”