Irritant vs Stimulus - What's the difference?

irritant | stimulus |

As nouns the difference between irritant and stimulus

is that irritant is any medication designed to cause irritation while stimulus is .

As an adjective irritant

is causing irritation or inflammation.




  • Causing irritation or inflammation.
  • (legal, Scotland) Rendering null and void; conditionally invalidating.
  • * Hayward
  • The states elected Harry, Duke of Anjou, for their king, with this clause irritant ; that, if he did violate any part of his oath, the people should owe him no allegiance.


    (en noun)
  • Any medication designed to cause irritation
  • A source of irritation.
  • stimulus


  • (rfc-sense) Anything that may have an impact or influence on a system.
  • an economic stimulus
  • * {{quote-news, year=2012, date=November 7, author=Matt Bai, title=Winning a Second Term, Obama Will Confront Familiar Headwinds, work=New York Times citation
  • , passage=Democrats, meanwhile, point out that Republicans seem to have made a conscious decision, beginning with the stimulus , to oppose anything the president put forward, dooming any chance of renewed cooperation between the parties.}}
  • (rfc-sense) (physiology) Something external that elicits or influences a physiological or psychological activity or response.
  • (rfc-sense) (psychology) Anything effectively impinging upon any of the sensory apparatuses of a living organism, including physical phenomena both internal and external to the body.
  • (rfc-sense) Anything that induces a person to take action.
  • Synonyms

    * (anything that may have an impact or influence) influence * (anything that induces a person to take action) impetus, impulse, spur