Physical irritability

• An abnormally high degree of irritability or sensitivity or excitability
• Excessive irritability

Wiktionary Word definitions in Wiktionary
n. 1 (context pathology English) Abnormal excitement of a bodily organ or tissue. 2 Any unusual or morbid overexcitement.

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Erethism \Er"e*thism\, n. [Gr. ? irritation, fr. ? to stir, rouse, fr. ? to stir: cf. F. ['e]r['e]thisme.] (Med.) A morbid degree of excitement or irritation in an organ. --Hoblyn.

WordNet Word definitions in WordNet
n. an abnormally high degree of irritability or sensitivity or excitability

Wikipedia Word definitions in Wikipedia
Erethism or erethism mercurialis is a neurological disorder which affects the whole central nervous system, as well as a symptom complex derived from mercury poisoning . This is also sometimes known as the mad hatter disease . Historically, this was common ...