Definition of "astrodynamics" [astrodynamics]

• The dynamics of natural and human-made bodies in outer space. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "An Air Force Academy grad with a master's degree in astrodynamics, he is aiming to keep alive a family tradition — his grandfather worked for NASA."
• "The hardware, the software and even the astrodynamics involved were new and largely untried."
• "I may not be an expert in astrodynamics, but using basic scientific principles and watching the arguments of the actors, I can make a pretty good guess as to how seriously I should treat the astroid problem without having to resort to blind faith."