Experiencing a feeling of irritation. / (pathology) Inflamed and painful.

simple past tense and past participle of irritate

One who or that which irritates.

serving to excite or irritate / accompanied with, or produced by, increased action or irritation

Any substance causing irritation; an irritant.

The quality of being irritant or irritating. / (law, Scotland) The state or quality of being null and void; invalidity

plural of irritancy

Third-person singular simple present indicative form of irritate

plural of irritation

Capable of being irritated. / Easily exasperated or excited. / (medicine) Responsive to stimuli.