phrenitis

/frɪˈnaɪtɪs/
noun
  1. Inflammation of the brain, often causing fever, delirium, or mental disturbance.
    • In ancient medical texts, phrenitis was often described as a dangerous brain fever.
    • The patient was diagnosed with phrenitis after showing signs of severe confusion and high fever.
    • The outbreak of phrenitis in the village caused panic among the residents.
  2. A state of intense excitement, frenzy, or mental agitation.
    • His phrenitis over the new project made him work day and night without rest.
    • The political rally descended into a phrenitis of shouting and chaos.
    • The crowd was caught in a phrenitis of joy after the team won the championship.