magnetograph

magnetograph is defined in Webster's Unabridged Dictionary (1913) with 1 sense. The full text of each entry is reproduced verbatim below.

Definitions

  1. 1.An automatic instrument for registering, by photography or otherwise, the states and variations of any of the terrestrial magnetic elements.

Source: Webster's Unabridged Dictionary, 1913 edition (public domain, via GCIDE / Project Gutenberg).

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