A line which crosses successive meridians at a constant angle; -- called also rhumb line, and loxodromic curve. See Loxodromic.

rum i) Any of the 32 points of the compass, ii) the angle between two successive compass points, iii) (in full rhumb-line) a line cutting all meridians at the same angle, iv) the line followed by a ship sailing in a fixed direction.

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