definition of administrator
Administrator (sometimes abbreviated admin) may refer to: 1  Administrator (business) , a person responsible for the performance or management of administrative business operations. 2  Administrator of the Government, in various Commonwealth realms and territories. Administrator (law) , a person appointed by a court to handle the administration of an estate for someone who has died without a will. 2  Administration (law) , a procedure under the insolvency laws of a number of common law jurisdictions.