a state of inflammation or painful reaction to allergy or cell-lining damage.
A condition of morbid excitability or oversensitiveness of an organ or part of the body; a state in which the application of ordinary stimuli produces pain or excessive or vitiated action.
Origin
Borrowed from Middle French irritation, from Latin irrītātiō, from irrītāre, present active infinitive of irrītō
Modern English dictionary
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