| 单词 | radius vector |
| 释义 | radius vectornoun, plural radii vec·to·res [vek-tawr-eez, -tohr-], /vɛkˈtɔr iz, -ˈtoʊr-/, radius vectors.Mathematics. the length of the line segment joining a fixed point or origin to a given point. Astronomy.
Origin of radius vectorFirst recorded in 1745–55 Words nearby radius vectorradius of action, radius of convergence, radius of curvature, radius of gyration, radius rod, radius vector, radix, radix point, rad-lib, RAdm, Radnor Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for radius vectorradius vector nounmaths a line joining a point in space to the origin of polar or spherical coordinates astronomy an imaginary line joining a satellite to the planet or star around which it is orbiting Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Scientific definitions for radius vectorradius vector A line segment that joins the origin and a variable point in a system of polar or spherical coordinates. The imaginary straight line that connects the center of the Sun or another body with the center of a planet, comet, or other body that orbits it. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
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