tree of life

noun4

1. •
   A term used in the Hebrew Bible that is a component of the world tree motif.
2. •
   A metaphor used to describe the phylogenetic relationships between organisms, both living and extinct; a diagram that shows those relationships, with a treelike appearance.
3. •
   (Judaism) The central mystical symbol used in the Kabbalah of esoteric Judaism, also known as the ten sephiroth.
4. •
   A kind of tree, the arborvitae; an individual thereof.