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mountain ash

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noun

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.

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Origin of mountain ash

First recorded in 1590–1600
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for mountain ash

mountain ash

noun

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
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