![1478 drawing by Theodoros Pelecanos], in alchemical tract titled Synosius.](/wiki/File:Ouroboros.png)
The Ouroboros is an ancient symbol depicting a serpent or dragon swallowing its own tail and forming a circle. The ouroboros has been important in religious and mythological symbolism, but has also been frequently used in alchemical illustrations.
| Credit: Theodoros Pelecanos |
The Ouroboros is an ancient symbol depicting a serpent or dragon swallowing its own tail and forming a circle. The ouroboros has been important in religious and mythological symbolism, but has also been frequently used in alchemical illustrations.