[ 'maskɒn ]
■ noun Astronomy a concentration of denser material below the surface of the moon or other body, causing a local increase in gravitational pull.
Origin
1960s: from mas(s) con(centration) .
[ 'maskɒn ]
■ noun Astronomy a concentration of denser material below the surface of the moon or other body, causing a local increase in gravitational pull.
Origin
1960s: from mas(s) con(centration) .
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004