In "A Taste of Armageddon", Anan 7 referred to the orbiting Starship Enterprise as a "star cruiser". In the novelization of TMP written by Gene Roddenberry, the author specifically referred to the Enterprise's official in-universe nomenclature as "heavy cruiser", meant to demilitarize her true nature as a "battleship". In STAR TREK III - THE SEARCH FOR SPOCK, the Klingon Bird of Prey crew recognized the Enterprise as a "Federation battlecruiser". And of course, sprinkled throughout TOS and the first few movies were repeated references to the Enterprise and her sisterships as "starship". Are there any other canon references in TOS the tell what the Starship Enterprise and her sisterships would be, nomenclature-wise?