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

• Royal Peculiar
• royal prerogative
• royal purple
• royal purples
• royal quarto
• Royal Red Cross
• royal road
• senior nursing officer
• senior optime
• seniors
• senior service
• senior services
• senior wrangler
• seniti
• senna
• sennachie
• senna pods
• sennas
• senna tea
• sennet
• sennets
• sennight
• sennights
• sennit
• sennits