n.
Pronunciation: ˌ är-b ə - ' r ē -t ə m
Function: noun
Inflected Form: plural -retums or -re · ta \ - ' r ē -t ə \
Etymology: New Latin, from Latin, plantation of trees, from arbor
Date: 1838
: a place where trees, shrubs, and herbaceous plants are cultivated for scientific and educational purposes