'three-mile belt' definitions:

Definition of 'three-mile belt'

From: GCIDE
  • Three-mile \Three"-mile`\, a. Of or pertaining to three miles; as,
  • the three-mile limit, or the limit of the marine belt (the
  • three-mile belt or three-mile zone) of three miles included in territorial waters (which see) of a state. [Webster 1913 Suppl.] [1913 Webster]