innerbelt in English dictionary innerbelt Meanings and definitions of "innerbelt" A highway that loops around a city, close to the city, that is without looping around the whole metropolitan area. noun A highway that loops around a city, close to the city, that is without looping around the whole metropolitan area. more Grammar and declension of innerbelt innerbelt ( plural innerbelts) innerbelt (plural innerbelts) more Sample sentences with "innerbelt" Declension Stem Try again Authors