arborist

[ ahr-ber-ist ]
/ ˈɑr bər ɪst /

noun

a specialist in the cultivation and care of trees and shrubs, including tree surgery, the diagnosis, treatment, and prevention of tree diseases, and the control of pests.

Origin of arborist

First recorded in 1570–80; arbor3 + -ist
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for arborist

arborist
/ (ˈɑːbərɪst) /

noun

a specialist in the cultivation of trees
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