from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A rhumb line.
- n. One of the points of the mariner's compass.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A line which crosses successive meridians at a constant angle
- n. One of the 32 points of the compass (compass points)
- n. A unit of angular measure equal to 1/32nd of a circle or 11.25°
from the GNU version of the Collaborative International Dictionary of English
- n. A line which crosses successive meridians at a constant angle; -- called also rhumb line, and loxodromic curve. See loxodromic.
from The Century Dictionary and Cyclopedia
- n. A vertical circle of the celestial sphere.
- n. A point of the compass, a thirty-second part of the circle of the horizon, 11° 15' in azimuth.
- n. The course of a ship constantly moving at the same angle to its meridian; a rhumb-line.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. 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
Mercator also produced the first globe to have rhumb lines (1541), based on his observation that a ship sailing towards the same point of the compass would follow a curve called a loxodrome (also called a rhumb line or spherical helix).
He paid close attention as the fleet set its course and steered along a rhumb line south-southwest from Sanlucar, running before a remarkably “steady and very sharp wind” nearly eight hundred miles down the coast of Africa, on a course for the Canary Islands.
Historians have called these survey lines a rhumb de vent or rhumb line.
Thence he went leisurely up stream to the Bumina Rapids, and found the easterly rhumb of the river bending to the N.E. and the N.N.E.; its channel did not exceed 50 yards in width, and precipitous rock-walls rose on either hand.
The bush-path began by wheeling westward, as though we were returning to Anenge-nenge; thence it struck south-eastwards, a rhumb from which it rarely deviated.
In this rhumb the horizon is bounded by El – Harrah, the volcanic region whose black porous lavas and honey-combed basalts, often charged with white zeolite, are still brought down even to the coast to serve as mortars and handmills.
This last information is obtained independently from what is called the NV90 programme of the computer which is able automatically to calculate the rhumb line track and distance between each of the respective waypoints once the co-ordinates have been fed into it.
On looking at our binnacle, they pointed to the north-west rhumb, and made us easily understand that it was the course they always steered on their return to Macassar.
"The rhumb course to the Channel," groaned Elisha, wildly.
Hornblower's mind, if it was thinking about anything at all at that moment, was thinking about rhumb lines; this question took him as much aback as the situation it envisaged.
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