Definition of "gradiometer" [gradiometer]

• Any of several instruments used to measure the gradient of a physical property (such as magnetic field) (noun)

Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License

• "In addition, the satellite is also the first to feature a gravity gradiometer, which is based on the principle of differential acceleration measurement."
• "Goce will carry a special device known as a gradiometer to measure these anomalies."
• "“That’s called a gradiometer,” Swanburg said, pointing to where Reedy was making adjustments to the machine on his chest."