arboretum
n. countablen. a garden or park where many different types of trees and plants are grown for study or beauty. It is like a living library of trees.
n. a collection of trees and shrubs grown for scientific, educational, or aesthetic purposes. Often used to describe a large-scale botanical garden dedicated to woody plants.
The local arboretum has over five hundred different types of trees.
Students from the biology department spend their afternoons at the university arboretum to study local tree species.
Established in the nineteenth century, the national arboretum serves as both a sanctuary for rare conifers and a vital research site for climate resilience studies.
Borrowed from Latin arborētum (“place with trees growing, plantation of trees”), from arbor (“tree”).