relativiser

Noun

relativizer (plural relativizers)

1. Someone or something that relativizes.
   • Josef Schuster, president of the Central Council of Jews in Germany, told Bild it was not enough that Extinction Rebellion had distanced itself from Mr. Hallam. […]
     “As keen as they criticize climate change deniers,” he said, “they should also do it with Holocaust relativizers.”2019 November 21, Elian Peltier, “Extinction Rebellion Co-Founder Apologizes for Holocaust Remarks”, in The New York Times
2. A grammatical element used to indicate a relative clause.