(a) For the purposes of sections 17a-75 to 17a-83, inclusive, and 17a-615 to 17a-618, inclusive, the following terms shall have the following meanings: “Business day” means Monday to Friday, inclusive, except when a legal holiday falls on any such day; “hospital for psychiatric disabilities” means any public or private hospital, retreat, institution, house or place in which any mentally ill person is received or detained as a patient, but shall not include any correctional institution of this state; “mentally ill person” means any person who has a mental or emotional condition which has substantial adverse effects on his or her ability to function and who requires care and treatment, and specifically excludes a person who is an alcohol-dependent person or a drug-dependent person, as defined in § 17a-680; “patient” means any person detained and taken care of as a mentally ill person; “keeper of a hospital for psychiatric disabilities” means any person, body of persons or corporation which has the immediate superintendence, management and control of a hospital for psychiatric disabilities and the patients therein; “support” includes all necessary food, clothing and medicine and all general expenses of maintaining state hospitals for persons with psychiatric disabilities; “indigent person” means any person who has an estate insufficient, in the judgment of the Court of Probate, to provide for his or her support and has no person or persons legally liable who are able to support him or her; “dangerous to himself or herself or others” means there is a substantial risk that physical harm will be inflicted by an individual upon his or her own person or upon another person, and “gravely disabled” means that a person, as a result of mental or emotional impairment, is in danger of serious harm as a result of an inability or failure to provide for his or her own basic human needs such as essential food, clothing, shelter or safety and that hospital treatment is necessary and available and that such person is mentally incapable of determining whether or not to accept such treatment because his judgment is impaired by his psychiatric disabilities. “Respondent” means a person who is alleged to be mentally ill and for whom an application for commitment to a hospital for persons with psychiatric disabilities has been filed; “voluntary patient” means any patient sixteen years of age or older who applies in writing to and is admitted to a hospital for psychiatric disabilities as a mentally ill person or any patient under sixteen years of age whose parent or legal guardian applies in writing to such hospital for admission of such patient; “involuntary patient” means any patient hospitalized pursuant to an order of a judge of the Probate Court after an appropriate hearing or a patient hospitalized for emergency diagnosis, observation or treatment upon certification of a qualified physician.

(b) For the purposes of this section, sections 17a-450 to 17a-483, inclusive, 17a-496 to 17a-528, inclusive, 17a-540 to 17a-550, inclusive, and 17a-560 to 17a-575, inclusive, the following terms shall have the following meanings: “Business day” means Monday to Friday, inclusive, except when a legal holiday falls on any such day; “hospital for persons with psychiatric disabilities” means any public or private hospital, retreat, institution, house or place in which any person with psychiatric disabilities is received or detained as a patient, but shall not include any correctional institution of this state; “patient” means any person detained and taken care of as a person with psychiatric disabilities; “keeper of a hospital for persons with psychiatric disabilities” means any person, body of persons or corporation which has the immediate superintendence, management and control of a hospital for persons with psychiatric disabilities and the patients therein; “support” includes all necessary food, clothing and medicine and all general expenses of maintaining state hospitals for persons with psychiatric disabilities; “indigent person” means any person who has an estate insufficient, in the judgment of the Court of Probate, to provide for his or her support and has no person or persons legally liable who are able to support him or her; “dangerous to himself or herself or others” means there is a substantial risk that physical harm will be inflicted by an individual upon his or her own person or upon another person; “gravely disabled” means that a person, as a result of mental or emotional impairment, is in danger of serious harm as a result of an inability or failure to provide for his or her own basic human needs such as essential food, clothing, shelter or safety and that hospital treatment is necessary and available and that such person is mentally incapable of determining whether or not to accept such treatment because his judgment is impaired by his psychiatric disabilities; “respondent” means a person who is alleged to have psychiatric disabilities and for whom an application for commitment to a hospital for persons with psychiatric disabilities has been filed; “voluntary patient” means any patient sixteen years of age or older who applies in writing to and is admitted to a hospital for persons with psychiatric disabilities as a person with psychiatric disabilities or any patient under sixteen years of age whose parent or legal guardian applies in writing to such hospital for admission of such patient; and “involuntary patient” means any patient hospitalized pursuant to an order of a judge of the Probate Court after an appropriate hearing or a patient hospitalized for emergency diagnosis, observation or treatment upon certification of a qualified physician.

(c) For the purposes of this section and sections 17a-496 to 17a-528, inclusive, “person with psychiatric disabilities” means any person who has a mental or emotional condition which has substantial adverse effects on his or her ability to function and who requires care and treatment, and specifically excludes a person who is an alcohol-dependent person or a drug-dependent person, as defined in § 17a-680.

(d) For the purposes of sections 17a-453, 17a-454, 17a-456, 17a-458 to 17a-464, inclusive, 17a-466 to 17a-469, inclusive, 17a-471, 17a-474, 17a-476 to 17a-483, inclusive, 17a-540 to 17a-550, inclusive, 17a-560 to 17a-575, inclusive, and 17a-615 to 17a-618, inclusive, “person with psychiatric disabilities” means any person who has a mental or emotional condition which has substantial adverse effects on his or her ability to function and who requires care and treatment, and specifically includes a person who is an alcohol-dependent person or a drug-dependent person, as defined in § 17a-680.