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

• high-hats
• high-hatted
• high-hatting
• high-hearted
• high-heeled
• High Holidays
• High Holy Days
• high horse
• high hurdles
• high-hysteresis rubber
• high-impact
• highing
• highish
• highjack
• highjacked
• highjacker
• highjackers
• highjacking
• highjackings
• highjacks
• high jinks
• high jump
• high jumps
• high-key
• high kick