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Petavius

[pi-tah-vee-uh s]
noun
  1. a walled plain in the fourth quadrant of the face of the moon: about 100 miles (160 km) in diameter from crest to crest.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for petavius

Historical Examples of petavius