giant tortoise Syllabification: (gi·ant tor·toise)Definition of giant tortoise noun a very large tortoise with a long lifespan, occurring on several tropical oceanic islands. Genus Geochelone, family Testudinidae: G. nigra (Galapagos Islands) and G. gigantea (Aldabra and the Seychelles) giant tortoise in other Oxford dictionaries Definition of giant tortoise in the British & World English dictionary
