cryptozoologyPronunciation: /ˌkrɪptəʊzuːˈɒlədʒi/Definition of cryptozoology noun [mass noun] the search for and study of animals whose existence or survival is disputed or unsubstantiated, such as the Loch Ness monster and the yeti. Derivatives cryptozoological adjective cryptozoologist noun cryptozoology in other Oxford dictionaries Definition of cryptozoology in the US English dictionary