Thesaurus: irritability

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1. n. The state or quality of being irritable; quick excitability; petulance; fretfulness; as, irritability of temper.
2. n. 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, -- as that quality in plants by which they exhibit motion under suitable stimulation; esp., the property which living muscle processes, of responding either to a direct stimulus of its substance, or to the stimulating influence of its nerve fibers, the response being indicated by a change of form, or contraction; contractility.
3. n. A condition of morbid excitability of an organ or part of the body; undue susceptibility to the influence of stimuli. See Irritation, n., 3.
4. n. an irritable petulant feeling
5. n. excessive sensitivity of an organ or body part
6. n. a disposition to exhibit uncontrolled anger
7. 1. The state or quality of being irritable; quick excitability; petulance; fretfulness; as, irritability of temper. 2. (Physiol.) 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, -- as that quality in plants by which they exhibit motion under suitable stimulation; esp., the property which living muscle processes, of responding either to a direct stimulus of its substance, or to the stimulating influence of its nerve fibers, the response being indicated by a change of form, or contraction; contractility. 3. (Med.) A condition of morbid excitability of an organ or part of the body; undue susceptibility to the influence of stimuli. See Irritation, n., 3.
8. A natural susceptibility, characteristic of all livingorganisms, tissues, and cells, to the influence of certain stimuli,response being manifested in a variety of ways, -- as that quality inplants by which they exhibit motion under suitable stimulation; esp.,the property which living muscle processes, of responding either to adirect stimulus of its substance, or to the stimulating influence ofits nerve fibers, the response being indicated by a change of form,or contraction; contractility.
9. n:100 n. an irritable petulant feeling