noun
ouroboros
A symbol of a serpent or dragon eating its own tail, representing cyclicality, eternity, or self-reflexivity. Used in mythology, alchemy, and popular culture.
ウロボロスは古代の象徴としてよく知られている。
The ouroboros is well known as an ancient symbol.
その小説の表紙にはウロボロスの絵が
The cover of that novel had a picture of an ouroboros.