radial motion

noun Astronomy.
the component of the motion of a star away from or toward the earth along its line of sight, expressed in miles or kilometers per second and determined by the shift in the wavelength of light emitted by the star.
Also called radial velocity.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To radial motion
Explore Dictionary.com
Previous Definition: radial keratotomy
Next Definition: radial nerve
Words Near: radial motion
More from Thesaurus.com
Synonyms and Antonyms for radial motion
More from Reference.com
Search for articles containing radial motion
More from Dictionary.com Translator
Dictionary.com Word FAQs

Dictionary.com presents 366 FAQs, incorporating some of the frequently asked questions from the past with newer queries.

Example sentences
The simplest explanation for such radial motion is that a companion tugs at the star.
Interface must lock the coils azimuthally, maintain the coils co-axial, and allow relative radial motion with low friction.
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature