lubber line

Variant of lubber's line

lubber's line definition

lubber's line

a fixed mark or line on a compass, aligned with the bow of a ship (or aircraft) and used as by the helmsman in steering a course
also lubber line

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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