The Collaborative International Dictionary
Sea mile
Sea mile \Sea" mile`\ A geographical mile. See Mile.
Wiktionary
sea mile
n. a nautical mile
WordNet
sea mile
n. a former British unit of length once used in navigation; equivalent to 1828.8 meters (6000 feet) [syn: mile]
Usage examples of "sea mile".
Jim's eyes went naturally to a single prick of light separated by over a sea mile of darkness from the others.
Never, if she sailed many a long sea mile with you, would anything be worth telling of her besides this.