Definition of arboretum in English:

arboretum

Syllabification: ar·bo·re·tum
Pronunciation: /ˌärbəˈrētəm
 
/

noun (plural arboretums or arboreta /-ˈrētə/)

  • A botanical garden devoted to trees.
    More example sentences
    • The Center for Plant Conservation, housed at the Missouri Botanical Garden, has organized a network of arboreta that keep endangered plants from across the United States.
    • At the northeast corner of the arboretum is the wooden Tree House.
    • It is one of the first trees in the arboretum to come into leaf and flowers prolifically with large creamy/pink blossoms in spring.

Origin

early 19th century: from Latin, 'a place with trees', from arbor 'tree' + -etum.

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Pronunciation: ˌkələrəˈto͝orə
noun
elaborate ornamentation of a vocal melody