arborist

from WordNet (r) 3.0 (2006)
arborist
    n 1: a specialist in treating damaged trees [syn: {tree
         surgeon}, {arborist}]
    
from The Collaborative International Dictionary of English v.0.48
Arborist \Ar"bor*ist\, n. [F. arboriste, fr. L. arbor tree.]
   One who makes trees his study, or who is versed in the
   knowledge of trees. --Howell.
   [1913 Webster]
    

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