Siobhan
Well, let me know whether it is a term of derision or a badge of pride, so I know what term is au courant... I'll try to keep up. :-)
Roman Catholic is the proper term for both Latin and Eastern Catholics and all the Orthodox as well.
Long before there was an creature called an Anglican, Rome proscribed professions of faith for repentant heretics that included phrases such as "we confess the one Church, not of heretics, but the Holy Roman Catholic and Apostolic Church outside of which we believe that no one is saved." (Profession of Faith for the Waldensians). Similarly, in his famous letter of 1393 to the Russians, Patriarch Anthony of Constantinople stresses that the Emperor in Constantinople is "the Emperor of all the Romans, that is, all Christians."
Any Catholic who does not like being a Roman is hardly a Catholic, since they are two sides of the same universal society - the Empire and the Church. Romanitas is of the essence of the Orthodox Faith and the Catholic Church.