arboretum
noun
- botanical garden containing living collections of woody plants intended at least partly for scientific study
Wiktionary
Pronunciation: /ɑː(ɹ)bəˈɹiːtəm/
noun
Etymology: Borrowed from Latin arborētum (“place with trees growing, plantation of trees”), from arbor (“tree”).
- A place where many varieties of tree are grown for research, educational, and ornamental purposes.