mountain ash

/ˌmaʊnt(ə)n ˈæʃ/

Other forms: mountain ashes

Definitions of mountain ash

1. noun

   any of various trees of the genus Sorbus
   types:

   European mountain ash, Sorbus aucuparia, rowan, rowan tree

   Eurasian tree with orange-red berrylike fruits

   American mountain ash, Sorbus americana

   a variety of mountain ash

   Sorbus sitchensis, Western mountain ash

   an ash of the western coast of North America

   Sorbus domestica, service tree, sorb apple, sorb apple tree

   medium-sized European tree resembling the rowan but bearing edible fruit

   Sorbus torminalis, wild service tree

   European tree bearing edible small speckled brown fruit

   type of:

   angiospermous tree, flowering tree

   any tree having seeds and ovules contained in the ovary
2. noun

   low-growing ash of Texas
   synonyms: Fraxinus texensis

   type of:

   ash, ash tree

   any of various deciduous pinnate-leaved ornamental or timber trees of the genus Fraxinus
3. noun

   tree having wood similar to the alpine ash; tallest tree in Australia and tallest hardwood in the world
   synonyms: Eucalyptus regnans

   type of:

   eucalypt, eucalyptus, eucalyptus tree

   a tree of the genus Eucalyptus