Definition of Fourteenth Amendment
The Fourteenth Amendment of the Constitution of the United States, ratified in 1868, creates or at least recognizes for the first time a citizenship of the United States, as distinct from that of the states; forbids the making or enforcement by any state of any law abridging the privileges and immunities of citizens of the United States; and secures all "persons” against any state action which results in either deprivation of life, liberty, or property without due process of law, or, in denial of the equal protection of the laws. This Amendment also contains provisions concerning the apportionment of representatives in Congress. See also Due process of law; Equal protection clause.
That's the definition of Fourteenth Amendment in Black's Law Dictionary 6th Edition. Courtesy of Cekhukum.com.