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planetology
planetology definition
plan·et·ol·ogy (plan′ə täl′ə jē)
noun
the branch of astronomy that studies and compares the planets and their moons
Related Forms:
- planetologist plan′·et·ol′o·gist noun
Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.
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