Mascon

name, noun

name, noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    A region within a solid astronomical body that is of higher density than the surrounding material.
  2. 2
    Synonym of Macon. obsolete
  3. 3
    A lunar mare that has a greater density of rock than the surrounding area.
  4. 4
    mass concentration
Proper Noun
  1. 1
    Synonym of Mâcon. obsolete

Etymology

Etymology 1

Blend of mass + concentration in 1960s by scientists Paul Muller and William Sjogren.

Etymology 2

Borrowed from French Mascon, from Medieval Latin Masconis, a syncopated form of Madasconis and Matisco, probably from Gaulish matus (“bear”) (from Proto-Celtic *matus, commonly understood as a euphemistic derivation from *matis (“good”)) and a suffix equivalent to -iscus (“-ish: forming adjectives”).

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.