Nautical mile
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1-2-090
Unit of linear measure chiefly used at sea. It is approximately one minute of latitude.
The international nautical mile is 1852 m (or 6076 feet) (International agreement at the I.H.B. Conference of 1929).
Reference: I.H.B.
Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)