RHUMB, n. [from rhomb.] In navigation, a vertical circle of any given place, or the intersection of such a circle with the horizon; in which last sense, rhumb is the same as a point of the compass.

n 1: 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 [syn: rhumb line, rhumb, loxodrome]

noun (pluralrhumbs) Etymology: Spanish rumbo rhumb, rhumb line Date: 1578 1. a line or course on a single bearing 2. any of the points of the mariner's compass

n. Naut. 1 any of the 32 points of the compass. 2 the angle between two successive compass-points. 3 (in full rhumb-line) a a line cutting all meridians at the same angle. b the line followed by a ship sailing in a fixed direction. Etymology: F rumb prob. f. Du. ruim room, assoc. with L rhombus: see RHOMBUS

Rhumb Rhumb, n. [F. rumb, Sp. rumbo, or Pg. rumbo, rumo, probably fr. Gr. ??? a magic wheel, a whirling motion, hence applied to a point of the compass. See Rhomb.] (Navigation) A line which crosses successive meridians at a constant angle; -- called also rhumb line, and loxodromic curve. See Loxodromic. To sail on a rhumb, to sail continuously on one course, following a rhumb line.