Wiktionary
mascons
n. (plural of mascon English)
Usage examples of "mascons".
Moon: using a device that sent radio impulses into the body of the Moon to see whether any ice or water existed below the surface, and conducting a fascinating experiment which might help to decide a furious lunar debate: Are mascons merely impacted meteors, suggesting that the Moon had a cold origin, or are they submerged lava flows, indicating a hot origin?