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Noun: nullifier
  1. An advocate of nullification; someone who believes that a state can resist federal laws
  2. An official who can invalidate or nullify
    "my bank check was voided and I wanted to know who the nullifier was";
    - invalidator, voider

Derived forms: nullifiers

Type of: advocate, advocator, exponent, functionary, official, proponent

Encyclopedia: Nullifier