Radius vector
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 co["o]rdinates. See {Co["o]rdinate}, 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]

The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

• radius vector — n. pl. radii vectores [vek tôr′ēz] or radius vectors 1. a straight line joining the origin of a vector, located at the intersection of two coordinates, to a given point lying in the same plane 2. a vector whose point of origin is fixed and whose… …   English World dictionary

• radius vector — /ˌreɪdiəs ˈvɛktə/ (say .raydeeuhs vektuh) noun (plural radii vectores /ˌreɪdiaɪ vɛkˈtɔriz/ (say .raydeeuy vek tawreez) or radius vectors) 1. Mathematics the length and direction of the line segment joining a fixed point or origin to a variable… …   Australian English dictionary

• radius-vector — padėties vektorius statusas T sritis fizika atitikmenys: angl. position vector; radius vector vok. Leitstrahl, m; Ortsvektor, m; Radiusvektor, m rus. вектор положения, m; радиус вектор, m pranc. rayon de position, m; rayon vecteur, m; rayon… …   Fizikos terminų žodynas

• radius vector — noun 1. a line connecting a satellite to the center of the body around which it is rotating • Hypernyms: ↑vector 2. a line connecting a point in space to the origin of a polar coordinate system • Hypernyms: ↑vector …   Useful english dictionary

• radius vector — pl. radii vectores /vek tawr eez, tohr /, radius vectors. 1. Math. the length of the line segment joining a fixed point or origin to a given point. 2. Astron. a. the straight line joining two bodies in relative orbital motion, as the line from… …   Universalium

• radius vector — ra′dius vec′tor n. pl. radii vec•to•res [[t]vɛkˈtɔr iz, ˈtoʊr [/t]] radius vectors 1) math. Math. the length of the line segment joining a fixed point or origin to a given point 2) astron. a) the straight line joining two bodies in relative… …   From formal English to slang

• radius vector — noun Date: circa 1753 1. a. the line segment or its length from a fixed point to a variable point b. the linear polar coordinate of a variable point 2. a straight line joining the center of an attracting body (as the sun) with that of a body (as… …   New Collegiate Dictionary

• radius vector — noun Mathematics a line of variable length extending from a centre to an orbit or other curve …   English new terms dictionary

• Radĭus — (lat.), 1) Strahl; 2) Speiche am Rad u. an den Armknochen; 3) eine vom Mittelpunkte einer krummlinigen Figur (bes. Kreis u. Ellipse) nach seinem Umfange gezogene Linie. In so fern sich um jedes regelmäßige Vieleck ein Kreis beschreiben läßt,… …   Pierer's Universal-Lexikon

• Vector — (Radius vector), »Fahrstrahl«, Leitstrahl; s. Radius und Kegelschnitte; vgl. Vektoranalysis …   Meyers Großes Konversations-Lexikon

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