0 an Italian dish made with pieces of veal (= meat from a young cow) including marrowbones (= bones with their inside part), cooked slowly in wine with vegetables:
Osso buco is shin steak, including the bone and marrow, braised very slowly with vegetables, tomatoes, white wine and herbs.
The meat looks like oxtail but I realise it's osso bucco, veal shins.
The traditional accompaniment to the Italian veal stew, ossobuco alla milanese, is gremolata, a mixture of parsley, garlic, and lemon zest.
