variometer

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noun var·i·om·e·ter \ˌver-ē-ˈä-mə-tər\

Definition of variometer

  1. 1 :  an instrument for measuring magnetic declination

  2. 2 :  an aeronautical instrument for indicating rate of climb

Circa 1889

First Known Use of variometer

circa 1889


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a harsh rebuke

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