Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

mascon

play
noun mas·con \ˈmas-ˌkän\

Definition of mascon

  1. :  any of the high-density regions below the surface of lunar maria that are held to perturb the motion of spacecraft in lunar orbit



Origin and Etymology of mascon

2mass + concentration


First Known Use: 1968


Learn More about mascon


Seen and Heard

What made you want to look up mascon? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

of striking ability or excellence

Get Word of the Day daily email!