Section 175.3 - Definitions(a) The term "Commission" when used in this Act shall mean the Oklahoma Public Welfare Commission.(b) The term "child" when used in this Act shall mean any person under twenty-one (21) years of age, whose parents, parent, spouse or legal guardian is financially unable to provide essential medical, dental, hospital, convalescent and nursing home care.(c) The term "Director" when used in this Act shall mean the Director of Public Welfare, who shall be the administrative officer of the Commission.(d) The term "Committee" when used in this Act shall mean the Professional Advisory Committee or other committees authorized by the Commission.(e) The term "Chairman" when used in this Act shall mean the Chairman of the Professional Advisory Committee.Okla. Stat. tit. 10, § 175.3