ɪ.ˈlɔŋ.ˌɡeɪt ɛkˈstɛndɪd pɹoʊˈlɔŋd pɹəʊˈlɒŋd having notably more length than width; being long and slender an elongate tail tapering to a point the old man's gaunt and elongated frame drawn out or made longer spatially Picasso's elongated Don Quixote lengthened skirts are fashionable this year the extended airport runways can accommodate larger planes a prolonged black line across the page