Caledonian UK /ˌkæləˈdəʊni.ən/US /ˌkæləˈdoʊni.ən/adjective 3noun 2forms 3 adjective3 •In or from Caledonia; (jocularly) Scottish. •Relating to a mountain-forming period (orogeny) in Europe. •In or from New Caledonia. noun2 •A native or inhabitant of Caledonia; a Scot.I congratulate the Caledonians on the acquisition of this new Saint, but wonder if the German crows were so civil to refrain from so savoury a Scotch haggiss. — 1717 •Someone from the ancient Celtic tribe (or group of tribes) called Caledonians, in Scotland formsCaledonians · more Caledonian · most Caledonian