variometer /vā-ri-omˈə-tər/

1. An instrument for comparing magnetic forces
2. A variable inductor composed of two connected coils, one rotating inside the other (electronics)
3. An instrument that indicates by a needle the rate of climb and descent (aeronautics)

• earth tremors
• earthward
• earthwards
• earthwax
• earthwaxes
• earthwolf
• earthwolves
• earthwoman
• earthwork
• earthworks
• earthworm
• earthworms
• earthy
• ear-trumpet
• ear-trumpets
• earwax
• earwaxes
• earwig
• earwigged
• earwigging
• earwiggings
• earwiggy
• earwigs
• ear-witness
• earworm