Synset
the excretory opening at the end of the alimentary canal
<noun.body>
anus
lexical pointers
derivationally related form
anal
semantic pointers
hypernym
orifice, opening, porta
part holonym
rectum
hyponym
arse, arsehole, asshole, bunghole
imperforate anus
part meronym
anal sphincter, sphincter ani, musculus sphincter ani