Definition of alpha state in US English:

alpha state


  • 1Chiefly Metallurgy. The state of a substance designated by the term alpha.

  • 2Psychology. A state in which the dominant rhythm of the brain's electrical activity is alpha waves; (hence) a state of extreme mental relaxation supposedly encountered when the brain is dominated by alpha waves.


Mid 19th century. From alpha + state.


alpha state

/ˈalfə ˌsteɪt/