Radius vector : 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.

Radius vector n. : 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.

Example:


Taxonomy
vector, position vector, free encyclopedia, position vectors, N-dimensional, radius vector, vector fields, Keller, Gettys, hyperspace, basis vectors, search, relation to, reference point, displacement, comparison, theories, 3-dimensional.

Defination from the web:
vector) From Wikipedia, the free encyclopedia (Redirected from Radius vector) Jump to: navigation, search. A position, location, or radius vector is a vector which represents the position of an object in space in relation to an arbitrary reference point. ...