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selenodesy

[sel-uh-nod-uh-see]
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noun
  1. the branch of astronomy that deals with the measurement of the moon's surface and its gravitational field.
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Origin of selenodesy

First recorded in 1960–65; seleno- + (geo)desy
Related formssel·e·nod·e·sist, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018