1) Eucalypt 2) Eucalyptus 3) Eucalyptus tree 
A stringybark can be any of the many Eucalyptus species which have thick, fibrous bark. Like all eucalypts, stringybarks belong to the family Myrtaceae. In exceptionally fertile locations some stringybark species (in particular messmate stringybark (Eucalyptus obliqua) can be very large, reaching over 80 metres in height. More typically, stringyba...
[n] - any of several Australian eucalypts having fibrous inner bark
Shaggy-barked eucalypt, its timber (proverbially tough) or its bark used as roof
noun any of several Australian eucalypts having fibrous inner bark