[ twelv-mahyl ]
/ ˈtwɛlvˌmaɪl /
the offshore boundary of a state, extending 12 miles (19 km) at sea.
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Compare three-mile limit.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for twelve-mile limit
the offshore boundary 12 miles from the coast claimed by some states as marking the extent of their territorial jurisdiction
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