ˌärbəˈrēd.]əm, ˌȧb-, -ēt] noun
( plural arboretums ]əmz ; also arbore·ta ]ə)
Etymology: New Latin, from Latin, a place grown with trees, from arbor + -etum
: a place where trees, shrubs, and herbaceous plants are cultivated for scientific and educational purposes : a botanic garden of trees