positive column

noun Physics.

the luminous region between the Faraday dark space and the anode glow in a vacuum tube, occurring when the pressure is low.

Nearby words

  1. positioner,
  2. positioning,
  3. positive,
  4. positive accommodation,
  5. positive caster,
  6. positive convergence,
  7. positive crankcase ventilation,
  8. positive declination,
  9. positive definite,
  10. positive discrimination

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