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lubber linealso lub·ber's line (lŭb′ərz)
A line or mark on a compass that is aligned with the central axis of a moving body, especially a ship or aircraft, and represents the heading.
(Nautical Terms) a mark on a ship's compass that designates the fore-and-aft axis of the vessel. Also called: lubber's line
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|Noun||1.||lubber line - a fixed line on a ship's compass indicating its heading|