trusteen. (Law) A person to whom property is legally committed in trust, to be applied either for the benefit of specified individuals, or for public uses; one who is intrusted with property for the benefit of another; also, a person in whose hands the effects of another are attached in a trustee process.()Trustee process (Law), a process by which a creditor may attach his debtor's goods, effects, and credits, in the hands of a third person; -- called, in some States, the process of foreign attachment, garnishment, or factorizing process. [U. S.]()v. t.1. To commit (property) to the care of a trustee; as, to trustee an estate.()2. (Law) To attach (a debtor's wages, credits, or property in the hands of a third person) in the interest of the creditor.()