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international nautical mile

American  
[in-ter-nash-uh-nl naw-ti-kuhl mahyl, not-i-kuhl] / ɪn tərˈnæʃ ə nl ˌnɔ tɪ kəl ˌmaɪl, ˈnɒt ɪ kəl /

noun

  1. a unit of distance at sea or in the air equal to 1.852 kilometers.


international nautical mile British  

noun

  1. the full name for nautical mile

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of international nautical mile

First recorded in 1930–35