nautical mile

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nautical mile

unit of measurement

Also known as: nmi

Learn about this topic in these articles:

definition

In mile
A nautical mile was originally defined as the length on the Earth’s surface of one minute (1/60 of a degree) of arc along a meridian (north-south line of longitude). Because of a slight flattening of the Earth in polar latitudes, however, the measurement of a nautical…
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