thumb|right|A dragon-like ouroboros in a 1478 drawing in an alchemical tract
The ouroboros is a symbol of a serpent or dragon eating its own tail, depicted in a 1478 alchemical drawing. It has been used historically in alchemy and other symbolic traditions, though the specific reasons for its significance are not detailed in the available information.
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thumb|right|A dragon-like ouroboros in a 1478 drawing in an alchemical tract
The ouroboros () or uroboros () is an ancient symbol depicting a snake or dragon eating its own tail. The ouroboros entered Western tradition via ancient Egyptian iconography and the Greek magical tradition. It was adopted as a symbol in Gnosticism, Hermeticism, and alchemy.
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