Irritability
WordNet
noun
(1) A disposition to exhibit uncontrolled anger
"His temper was well known to all his employees"
(2) Excessive sensitivity of an organ or body part
(3) An irritable petulant feeling
WiktionaryText
Noun
irritability
- The state or quality of being irritable; quick excitability; petulance; fretfulness; as, irritability of temper.
- A natural susceptibility, characteristic of all living organisms, tissues, and cells, to the influence of certain stimuli, response being manifested in a variety of ways.
- A condition of morbid excitability of an organ or part of the body; undue susceptibility to the influence of stimuli.