privileges or immunities clause
Privileges or Immunities Clause. The constitutional provision (U.S. Const. amend. XIV, § 1) prohibiting state laws that abridge the privileges or immunities of U.S. citizens. • The clause was effectively nullified by the Supreme Court in the Slaughter-House Cases, 83 U.S. (16 Wall.) 36 (1873). Cf. DUE PROCESS CLAUSE; EQUAL PROTECTION CLAUSE. [Cases: Constitutional Law 206. C.J.S. Constitutional Law § 649.]