irritant

/หˆษชษนษชtษ™nt/

IPA: /IH1 R AH0 T AH0 N T/

noun
  1. 1

    Any medication designed to cause irritation

  2. 2

    A source of irritation.

adjective
  1. 1

    Causing irritation or inflammation.

  2. 2

    Rendering null and void; conditionally invalidating.

Source: https://en.wiktionary.org/wiki/irritant