1. a transportation system partially or wholly surrounding a city, terminal, district, or port.
2. (in automotive styling) a horizontal boundary dividing the upper and lower parts of a car body, either an actual line of trim or an imaginary line that follows contours of the body.
Pronunciation: (belt'līn"), [key]
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.