lubber line


Also found in: Thesaurus, Encyclopedia, Wikipedia.

lubber line

also lub·ber's line  (lŭb′ərz)
n.
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.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

lubber line

n
(Nautical Terms) a mark on a ship's compass that designates the fore-and-aft axis of the vessel. Also called: lubber's line
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.lubber line - a fixed line on a ship's compass indicating its heading
point of reference, reference point, reference - an indicator that orients you generally; "it is used as a reference for comparing the heating and the electrical energy involved"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
The card is viewed through a glass window which forms part of the fluid container and features a vertical line, called a lubber line, against which is compared the compass card.
If you push the course pointer knob, it will center the HSI at top of the lubber line with a TO indication.
Heading mode orients the HSI to display aircraft heading in a conventional manner, with the current heading value shown at the top of the compass card as indicated by the lubber line. In automatic track-up mode, the aircraft symbol and lubber line move to indicate heading and wind correction, while the current ground track is shown at the top of the compass card.