brontograph

1 definition found

brontograph - Collaborative International Dictionary of English v.0.48 :

  Brontograph \Bron"to*graph\, n. [Gr. ? thunder + -graph.]
     (Meteor.)
     (a) A tracing or chart showing the phenomena attendant on
         thunderstorms.
     (b) An instrument for making such tracings, as a recording
         brontometer.
         [Webster 1913 Suppl.] Brontolite