'Erethism' definitions:

Definition of 'erethism'

From: WordNet
noun
An abnormally high degree of irritability or sensitivity to stimulation of an organ or body part

Definition of 'Erethism'

From: GCIDE
  • 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. [1913 Webster]