brontograph 雷暴自记器
雷雨表
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.]