What is the meaning of institutionalised?

verb

• Cause to be admitted; of persons to an institution.
  • usage: "After the second episode, she had to be committed"; "he was committed to prison"
  • synonyms: commit, institutionalize, institutionalise, send, charge

adjective

• Officially placed in or committed to a specialized institution.
  • usage: "had hopes of rehabilitating the institutionalized juvenile delinquents"
  • synonyms: institutionalized
• Given the character of an institution or incorporated into a structured and usually well-established system.
  • usage: "institutionalized graft"; "institutionalized suicide as practiced in Japan"
  • synonyms: institutionalized