rhumb line


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rhumb line

n.
The path of a ship that maintains a fixed compass direction, shown on a map as a line crossing all meridians at the same angle. Also called loxodrome.
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.

rhumb line

n
1. (Mathematics) an imaginary line on the surface of a sphere, such as the earth, that intersects all meridians at the same angle
2. (Navigation) the course navigated by a vessel or aircraft that maintains a uniform compass heading
Often shortened to: rhumb
[C16: from Old Spanish rumbo, apparently from Middle Dutch ruum space, ship's hold, but also influenced by Latin rhombus]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

rhumb′ line`


n.
the path of a ship that maintains a constant compass direction.
[1660–70]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

rhumb line

- A line on a sphere that cuts all meridians at the same angle; the path taken by a ship or plane that maintains a constant compass direction.
See also related terms for sphere.
Farlex Trivia Dictionary. © 2012 Farlex, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.rhumb line - a line on a sphere that cuts all meridians at the same angle; the path taken by a ship or plane that maintains a constant compass direction
line - a spatial location defined by a real or imaginary unidimensional extent
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Using two big charts (now withdrawn) of the NSW and Tasmanian coast, I draw the rhumb line. (I then ignore it, as it's simply a reference, not a fixation.)
* Rhumb line (loxodrome)--the straight line of constant bearing.
In particular, the flow of the geodesics and the rhumb line looks different depending on the method of the projections given by the strict formulae.
To use it, a pilot basically ignores the direct-to rhumb line course, as well as the great-circle, and bases his or her planning on the position of low- and high-pressure systems.
First off there's an album called The Rhumb Line from Ra Ra Riot who I was lucky enough to catch on their home turf at New York's Bowry Ballroom earlier this year.
Seals and dolphins played around the boat as it headed south, going slightly outside the rhumb line (the direct compass course or line to the finish in Ensenada) to try and avoid kelp and seek fresh wind.
This meant that the ship's course no longer had to coincide exactly with its direction (its rhumb line).