What do a.m. and p.m. stand for?

orbital velocity

the minimum velocity at which a body must move to maintain a given orbit. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for orbital velocity
  • Solar radiation bombarding the particles causes them to lose orbital velocity and eventually fall into the nearest planet.
  • Solar sails can be used to increase orbital velocity, and spiral out from the sun.
  • The rotation curve, a plot of orbital velocity versus distance, then remains nearly flat to the edge of the visible galaxy.
British Dictionary definitions for orbital velocity

orbital velocity

the velocity required by a spacecraft, satellite, etc, to enter and maintain a given orbit
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
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