English

Noun

tree of life ‎(plural trees of life)

1. A kind of tree, the arborvitae.
2. (biology) A metaphor used to describe the relationships between organisms, both living and extinct, usually represented with a tree-like diagram.
3. (religion) A term used in the Hebrew Bible that is a component of the world tree motif.
4. (Judaism) The central mystical symbol used in the Kabbalah of esoteric Judaism, also known as the 10 Sephirot.

References

• Tree of life (biology) on Wikipedia.Wikipedia
• A new view of the tree of life, Nature Microbiology, April 11, 2016, (2016)
• Tree of life (biblical) on Wikipedia.Wikipedia
• Tree of life (Kabbalah) on Wikipedia.Wikipedia