资料来源 : pyDict

肛门

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Anus \A"nus\, n. [L., prob. for asnus: cf. Gr. ? to sit, Skr.
   [=a]s.] (Anat.)
   The posterior opening of the alimentary canal, through which
   the excrements are expelled.

资料来源 : WordNet®

anus
     n : excretory opening at the end of the alimentary canal [syn: {arse},
          {arsehole}, {asshole}]