geomagnetism /jē-ō-magˈnə-ti-zm/

1. The magnetism of the earth, earth's magnetic field
2. The study of this

geomagnetˈic adjective

geomagˈnetist noun

• lusher
• lushers
• lushes
• lushest
• lush-house
• lush-houses
• lushier
• lushiest
• lushing
• lushly
• lushness
• lushnesses
• lushy
• Lusitanian
• Lusitano-American
• lusk
• lusked
• lusking
• luskish
• luskishness
• luskishnesses
• lusks
• Luso-
• Lusophile
• lust