Definitions
1.NounA European tree, rowan or, more specifically, European rowan, of species Sorbus aucuparia.
2.NounAny of several trees in the genus Sorbus in North America.
3.NounA tree native to southeastern Australia, Eucalyptus regnans, the tallest of all flowering plants.
4.NounA Texan ash tree of species Fraxinus texensis.