(nôʹtĭ-kəl) adjective. Abbr. naut. Of, relating to, or characteristic of ships, shipping, sailors, or navigation on a body of water, nautika: nautical almanac, almanak nautika.
nautical mile (nôʹtĭ-kəl mĪl) noun. Abbr. nm, n.m., NM. A unit of length used in sea and air navigation, based on the length of one minute of arc of a great circle, especially an international and U.S. unit equal to 1,852 meters (about 6,076 feet). Also called sea mile, batu nautika.