(plural arbor vitae or arbor vitaes or arbores vitae)
- (botany) Any of the evergreen trees known as arborvitae, of the genera Thuja and Thujopsis.
- (anatomy) White matter of the cerebellum.
- connected to fibres of the arbor vitae and to divaricating axons
From Latin arbor (“tree”) + vitae, genitive singular of vita (“life”)