port·land \ˈpōrtlənd, -ȯrt-, -ōət-, -ȯ(ə)t-\adjective Usage: usually capitalized 1.[from Portland, city in southwest Maine]: of or from the city of Portland, Maine < Portland harbor > : of the kind or style prevalent in Portland, Maine 2.[from Portland, city in northwest Oregon]: of or from the city of Portland, Oreg. : of the kind or style prevalent in Portland, Oreg.