1. abnormal sensitivity or irritability of an organ or body part to stimulation
Usage: medical/physiological term
2. excessive emotional excitement or agitation
Usage: rare; formal

Examples

• The patient experienced erethism in the affected nerve after the injury.
• Dental erethism can cause severe pain when teeth are exposed to temperature changes.
• The drug's side effects included nervous erethism and restlessness.
• Mercury poisoning historically caused erethism, leading to tremors and mood swings.
• The condition manifested as erethism of the sensory receptors.