adjective (a)

• of or related to the anus(adj.pert)

  Example:
  Anal thermometer.
  

  source: wordnet30
• a stage in psychosexual development when the child's interest is concentrated on the anal region; fixation at this stage is said to result in orderliness, meanness, stubbornness, compulsiveness, etc.(adj.all)

  Synonym:
  anal retentive
  Antonym:
  oral
  

  source: wordnet30
• Pertaining to, or situated near, the anus; as, the anal fin or glands.(adjective)

  source: webster1913