PITAHAYA Meaning of PITAHAYA in English [ ˌpɪtə'hʌɪə ]■ noun a saguaro or other tall cactus of Mexico and the south-western US. ↘the edible fruit of the ~.OriginC18: from Sp., from Haitian Creole. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004