arboretum

noun

ar·​bo·​re·​tum ˌär-bə-ˈrē-təm 

plural arboretums or arboreta ˌär-bə-ˈrē-tə 

: a place where trees, shrubs, and herbaceous plants are cultivated for scientific and educational purposes

Examples of arboretum in a Sentence

Recent Examples on the Web

Although the arboretum is in a busy section of a growing city, Ramsey said the benefits of tuning out and getting in touch with nature are the same. —Allen G. Breed, Los Angeles Times, 15 Apr. 2026

Check the arboretum website for a full schedule of events. —Travis Pinson, Dallas Morning News, 10 Apr. 2026

Other areas of the arboretum include a butterfly garden, wildflower garden, and conifer collection. —Ashlyn Ware, Midwest Living, 9 Apr. 2026

The Morton Arboretum is offering an Arbor Day Plant Sale from April 23-25 near the arboretum’s main Route 53 entrance in Lisle. —Michelle Mullins, Chicago Tribune, 2 Apr. 2026

Word History

Etymology

New Latin, from Latin, plantation of trees, from arbor

First Known Use

1796, in the meaning defined above

Rhymes for arboretum

• equisetum
• pennisetum
• decretum

Kids Definition

arboretum

noun

ar·​bo·​re·​tum ˌär-bə-ˈrēt-əm 

plural arboretums or arboreta -ˈrēt-ə 

: a place where trees and plants are grown for scientific and educational purposes