One who believes in nullification as a means by which U.S. states may resist federal laws.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "nullifier" in a sentence
"I still have the nullifier necklace I gave you back in New Orleans."
"And yes, I am a nullifier and no I am not a secessionist."
"I dont know if he still has his powers, however, as he was hit by a nullifier which neutralized the radiation from gun."