anus(n = noun.body) - the excretory opening at the end of the alimentary canal;
is a kind of opening, orifice, porta
is a part of rectum
has parts: anal sphincter, musculus sphincter ani, sphincter ani
has particulars: arse, arsehole, asshole, bunghole, imperforate anus
Derived form adjective anal1
The posterior opening of the alimentary canal, through which the excrements are expelled. [1913 Webster]
anus, n. Anat. the excretory opening at the end of the alimentary canal.
Etymology:
L