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gradiometer

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noun gra·di·om·e·ter \ˌgrā-dē-ˈä-mə-tər\

Definition of gradiometer

  1. :  an instrument for measuring the gradient of a physical quantity (as the earth's magnetic field)



Origin and Etymology of gradiometer

gradient + -o- + -meter


First Known Use: 1899


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a very small amount

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