Pronunciation: (är'bur vī'tē),[key]Anat. a treelike appearance in a vertical section of the cerebellum, due to the arrangement of the white and gray nerve tissues.
Pronunciation: (är"bur-vī'tē),[key] —n. 1. any of several ornamental or timber-producing evergreen trees belonging to the genus Thuja, of the cypress family, native to North America and eastern Asia, having a scaly bark and scalelike leaves on branchlets.
2. Anat.See arbor vitae.