selenodesy

[ sel-uh-nod-uh-see ]
/ ˌsɛl əˈnɒd ə si /

noun

the branch of astronomy that deals with the measurement of the moon's surface and its gravitational field.

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. 2019