Tucana Syllabification: (Tu·ca·na)Pronunciation: /t(y)o͞oˈkānə, -ˈkanə/ AstronomyDefinition of Tucana a southern constellation (the Toucan), south of Grus and Phoenix. It contains the Small Magellanic Cloud. (as genitive Tucanae /t(y)o͞oˈkānē, -ˈkanē/) used with a preceding letter or numeral to designate a star in this constellation:the star Delta TucanaeOrigin:modern LatinTucana in other Oxford dictionaries Definition of Tucana in the British & World English dictionary