arboreal (4) | (adj.) - From the Latin word. = Of or like a tree or living in the trees. |
arboretum (3) | (adj.) - tree + place. = A place for the study and display of trees. |
arboriculture (4) | (noun) - tree + culture. = Growing trees and shrubs, especially for ornamental purposes. Arboricultural is the adjective form. |
arborist (4) | (noun) - From the Latin word. = One who takes care of trees. |
arborvitae (4) | (noun) - tree + life. = A type of evergreen tree or shrub of the cypress family which usually has closely overlapping leaves and are used as ornaments and hedges. |