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Definition of Dygogram
1. Noun. (nautical) A chart showing the horizontal variation in the magnetic force acting on a ship's compass needle by the iron within the ship, as a function of course steered ¹
¹ Source: wiktionary.com
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1. Noun. (nautical) A chart showing the horizontal variation in the magnetic force acting on a ship's compass needle by the iron within the ship, as a function of course steered ¹
¹ Source: wiktionary.com