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

• break out
• breakout
• break point
• breakpoint
• break Priscian's head
• break-promise
• break-promises
• break rank
• break ranks
• breaks
• break service
• break sheer
• break someone's heart
• break someone's serve
• break step
• break the back of
• break the balls
• break the bank
• break the ice
• break through
• breakthrough
• breakthrough bleeding
• breakthroughs
• breaktime
• breaktimes