cosignatory
co·sig·na·tory
noun
1.
one of two or more signers of the same document (as a treaty or declaration)
adjective
Origin
From co- + signatory.
Related words
Word family
Broader terms
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.