- any of several small trees of the genus Sorbus, of the rose family, having flat-topped clusters of small, white flowers and bright-red to orange berries.
- any of certain other trees, as several Australian species of eucalyptus.
Origin of mountain ash
First recorded in 1590–1600
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for mountain ash
The first berries to go as the autumn approaches are those of the mountain-ash.Round About a Great Estate
Pyrus Americana (American mountain-ash), common along shores.The Maine Woods
Henry David Thoreau
Sibyl always regarded his offer under the mountain-ash as the second time.A Devotee
Jane has a bunch of mountain-ash berries tucked into her belt.Dimbie and I--and Amelia
Singing to them, sitting on a mountain-ash tree, is a sleek robin.Doctor Cupid
- any of various trees of the rosaceous genus Sorbus, such as S aucuparia (European mountain ash or rowan), having clusters of small white flowers and bright red berries
- any of several Australian eucalyptus trees, such as Eucalyptus regnans
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012