in·den·ture 
(ĭn-dĕnchər)
(ĭn-dĕnchər)n.
1. often indentures A contract binding one party into the service of another for a specified term.
2.
a. A deed executed by more than one party.
b. An instrument or agreement specifying the terms of a bond or trust.
3. A document separated into portions so as to create indentations that allow the holders of the separate portions to match up in order to confirm authenticity.
tr.v. in·den·tured, in·den·tur·ing, in·den·tures
To bind into the service of another by indenture.
[Middle English endenture, a written agreement, from Anglo-Norman, from endenter, to indent (from the matching notches on multiple copies of the documents); see INDENT1.]