IRRITATION
annoyance, annoying, irritation, vexation
(noun) the act of troubling or annoying someone
aggravation, irritation, provocation
(noun) unfriendly behavior that causes anger or resentment
discomfort, soreness, irritation
(noun) an uncomfortable feeling of mental painfulness or distress
pique, temper, irritation
(noun) a sudden outburst of anger; “his temper sparked like damp firewood”
excitation, innervation, irritation
(noun) the neural or electrical arousal of an organ or muscle or gland
irritation, annoyance, vexation, botheration
(noun) the psychological state of being irritated or annoyed
irritation
(noun) (pathology) abnormal sensitivity to stimulation; “any food produced irritation of the stomach”
Source: WordNet® 3.1
Etymology
Noun
irritation (countable and uncountable, plural irritations)
The act of irritating or annoying
The state of being irritated
The act of exciting, or the condition of being excited to action, by stimulation; -- as, the condition of an organ of sense, when its nerve is affected by some external body; especially, the act of exciting muscle fibers to contraction, by artificial stimulation; as, the irritation of a motor nerve by electricity; also, the condition of a muscle and nerve, under such stimulation.
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.
Source: Wiktionary
Ir`ri*ta"tion, n. Etym: [L. irritatio: cf. F. irritation.]
1. The act of irritating, or exciting, or the state of being
irritated; excitement; stimulation, usually of an undue and
uncomfortable kind; especially, excitement of anger or passion;
provocation; annoyance; anger.
The whole body of the arts and sciences composes one vast machinery
for the irritation and development of the human intellect. De
Quincey.
2. (Physiol.)
Definition: The act of exciting, or the condition of being excited to
action, by stimulation; -- as, the condition of an organ of sense,
when its nerve is affected by some external body; esp., the act of
exciting muscle fibers to contraction, by artificial stimulation; as,
the irritation of a motor nerve by electricity; also, the condition
of a muscle and nerve, under such stimulation.
3. (Med.)
Definition: 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.
Source: Webster’s Unabridged Dictionary 1913 Edition