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Related to aneroid altimeter: altimetry
aneroid altimeter:see air navigationair navigation,
science and technology of determining the position of an aircraft with respect to the surface of the earth and accurately maintaining a desired course (see navigation).
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aneroid altimeter[′an·ə‚rȯid al′tim·əd·ər]
An altimeter containing an aneroid barometer that actuates the indicator.