colloq. [The first three letters of ZOOLOGICAL taken as one syllable.] The Zoological Gardens in Regents Park, London; also extended to similar collections of animals elsewhere.
c. 1847. Macaulay, in Life & Lett. (1878), II. 216. We treated the Clifton Zoo much too contemptuously.
1886. C. E. Pascoe, Lond. To-day, iv. (ed. 3), 65. The Zoo in time past was as favourite a fashionable resort as Rotten Row.