noun
tree surgeon; tree doctor
A specialist who diagnoses and treats trees, especially famous, old, or culturally significant ones. The term emphasizes medical care for trees, similar to a doctor for humans.
樹医が神社の大木を診断した。
The tree doctor examined the large tree at the shrine.
彼は樹医として、多くの古木を治療してきた。
As a tree surgeon, he has treated many old trees.