deed poll

from the GNU version of the Collaborative International Dictionary of English.

• (Law) A deed of one part, or executed by only one party, and distinguished from an indenture by having the edge of the parchment or paper cut even, or polled as it was anciently termed, instead of being indented.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun law A deed relating only to one party, distinguished from an indenture by having the edge of the paper cut evenly, or "polled", rather than being indented.
• noun law, UK, Ireland A deed that effects a change of an individual's name.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a deed made and executed by only one party