takahePronunciation: /ˈtɑːkəhi/Definition of takahe noun a large, rare flightless rail with bluish-black and olive-green plumage and a large red bill, found in mountain grassland in New Zealand. Porphyrio mantelli, family Rallidae Origin: mid 19th century: from Maoritakahe in other Oxford dictionaries Definition of takahe in the US English dictionary