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arboretum

ar·bo·re·tum [ rbə rtəm ] (plural ar·bo·re·tums or ar·bo·re·ta [ rbə rtə ])


noun 
Definition:
 
tree cultivation area: an area planted with many types of trees for study, display, and preservation

[Mid-19th century. < Latin, "place grown with trees, plantation of trees" < arbor "tree"]
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