U.S. History. a clause in the constitutions of some Southern states after 1890 intended to permit whites to vote while disfranchising blacks: it exempted from new literacy and property qualifications for voting those men entitled to vote before 1867 and their lineal descendants.
any legal provision that exempts a business, class of persons, etc., from a new government regulation that would affect prior rights and privileges.
British Dictionary definitions for grandfather clause
grandfather clause
noun
UShistorya clause in the constitutions of several Southern states that waived electoral literacy requirements for lineal descendants of people voting before 1867, thus ensuring the franchise for illiterate White people: declared unconstitutional in 1915
a clause in legislation that forbids or regulates an activity so that those engaged in it are exempted from the ban
