Kairos is an appeal to the timeliness of the argument. Two common rhetorical devices are irony and metaphor. The use of irony in rhetoric is primarily to convey to the audience an incongruity that is often used as a tool of humor in order to deprecate or ridicule an idea or course of action.
Definition of irritant for English Language Learners. : 1  something that makes part of your body sore and painful. : 2  something that is unpleasant or annoying : something that irritates you.
Patient discussion about irritant. Q. I have stomach problem from many years.This irritates me a lot and I feel troubled by this weight on me. I have stomach problem from many years.I am in my middle age and have given room for all the methods to lose weight and even read books and all and all magazines but in vain.. an agent that is toxic, bacterial, physical, or chemical and is capable of inducing functional derangements or organic lesions of the tissues. irritant, chemical, n a chemical agent that causes irritation. The primary agents that have an etiologic relationship to periodontal disease are plaque and calculus.