For the purposes of this article, the following terms shall have the respective meanings ascribed by this section:
"Claimant agency" means the Board of Trustees of State Institutions of Higher Learning or any institution under the jurisdiction thereof, the Mississippi Guarantee Student Loan Agency, the Mississippi Postsecondary Education Financial Assistance Board, any public community or junior college, or any state agency which has loaned money to or is owed a debt by an individual for educational purposes.
"Debtor" means any individual owing money or having a delinquent account with any claimant agency, which obligation has not been adjudicated satisfied by court order, set aside by court order, or discharged in bankruptcy.
"Debt" means any liquidated sum due and owing any claimant agency which has accrued through contract, subrogation, tort or operation of law, regardless of whether there is an outstanding judgment for that sum.
"Commission," "State Tax Commission" or "department" means the Department of Revenue of the State of Mississippi.
"Refund" means the Mississippi income tax refund which the commission determines to be due any individual taxpayer.