from The Century Dictionary and Cyclopedia

  • n. An apparatus for recording automatically the state of ionization of the air or of any gas. It consists of an air-condenser, one plate of which is grounded through a high resistance while the other is connected to an electrometer.


Sorry, no etymologies found.


  • He'll fight harder for enough funds to afford me, or someone like me,, than to get a recording ionograph. "

    The Complete Stories Vol 1


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