'Radius vector' definitions:
Definition of 'radius vector'
(from WordNet)
noun
A line connecting a satellite to the center of the body around which it is rotating
noun
A line connecting a point in space to the origin of a polar coordinate system
Definition of 'Radius vector'
From: GCIDE
- Radius vector \Ra"di*us vec"tor\ (v[e^]k"t[o^]r).
- 1. (Math.) A straight line (or the length of such line) connecting any point, as of a curve, with a fixed point, or pole, round which the straight line turns, and to which it serves to refer the successive points of a curve, in a system of polar coordinates. See Coordinate, n. [1913 Webster]
- 2. (Astron.) An ideal straight line joining the center of an attracting body with that of a body describing an orbit around it, as a line joining the sun and a planet or comet, or a planet and its satellite. [1913 Webster]