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“brontograph”
brontograph (s) (noun, brontographs (pl)
A chart showing thunder phenomena which is recorded by that instrument: The local TV was showing the brontographs of the storm that was going on in Joe's area.
This entry is located in the following units:
bronto-, bront-
(page 1)
grapho-, graph-, -graph, -graphy, -grapher, -graphia
(page 12)