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The Dictionary of English Nautical Language Database: Search Results

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Term: compass card (n)
Definition: 1) A flat disc mounted on the needle of a ship’s magnetic compass so as to swing freely, having the 32 points of the compass or the 360 degrees of a circle printed around the perimeter, as in: “The compass card should be illuminated with a red light so as not interfere with the helmsman’s night vision” 2) A similar card mounted in a gyrocompass.
See Also: gyrcompass

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