lubber's line
or lubber line
nounNavigation.
a vertical line on the forward inner side of the bowl of a fixed compass, used as a reference mark indicating the heading of a vessel.
Origin of lubber's line
1First recorded in 1855–65
- Also called lubber's mark, lubber's point .
Words Nearby lubber's line
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
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