[f. as prec. + -ER.] One who or that which unifies or unites; one who advocates unification in administration.
1867. Spencer, First Princ., II. iii. § 51 (ed. 2), 171. The derivative data needed by Philosophy as the unifier of Science.
1881. Echo, 2 Feb., 1/6. The Great Victor Emmanuel, the liberator and unifier of Italy.
