al·der·ney \ˈȯldə(r)nē, -ni\noun (-s) Etymology: from Alderney, one of the Channel islands in Guernsey bailiwick, England 1.usually capitalized: an animal of any Channel island breed of cattle (as a Jersey or a Guernsey) 2.often capitalized: a moderate yellowish brown that is paler than Bismarck brown and less strong and very slightly yellower than maple sugar