Definition of mountain ash in English:

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mountain ash

Pronunciation: /ˈmount(ə)n ˌaSH/


1A small deciduous tree of the rose family, with compound leaves, white flowers, and red berries. Also called rowan.
Example sentences
  • These trees, including many varieties of crabapple, hawthorn, pear, mountain ash, flowering quince and pyracantha, should be pruned during the dormant season.
  • Many a Scots family planted mountain ash, a tree with brilliant red-orange berries, at its door to keep the witches and fairies away.
  • It's hard to think of autumn and winter berries without thinking of the mountain ash, or rowan tree.
2Australian A eucalyptus tree that is widely used for timber.
  • Genus Eucalyptus, family Myrtaceae: several species, in particular the very tall E. regnans.
Example sentences
  • Now what about the tallest trees, because I believe the tallest one ever measured in Australia was a eucalyptus regnans, or a mountain ash, in Victoria.
  • David Lindenmeyer raises a very interesting point that the mountain ash forests in Australia, in Victoria and Tasmania, are the best carbon sinks of any forests in the world, which is quite interesting.
  • The Jurassic grandeur of the Otway National Park soon enfolded the road, the car, and much of the daylight, within a leafy tunnel of mountain ash, gum, beech and ferns.

For editors and proofreaders

Syllabification: moun·tain ash

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