signatary|ˈsɪgnətərɪ| [ad. F. signataire.] = signatory n. 1858Times 13 Aug. 7/1 The signataries of these two remarkable petitions.1867Queen's Speech in Hansard CLXXXV. 4 All the Powers, Signataries of the Treaty of 1856.1884Symonds Shaks. Predec. viii. 269 Within the jurisdiction of the signataries.