Noun
(mythology) A serpent, dragon or worm that eats its own tail, a representation of the continuous cycle of life and death.
(by extension) Anything of a circular or recursive nature.
Source: en.wiktionary.orgSigurd Snake-in-the-eye was a Viking warrior and Danish King, and got that nickname as he was born with a mark in his eye, described as the image of the Ouroboros (a snake biting its own tail), something that was prophesied by Aslaug. Source: Internet
Some of the same elements also appear later in The Cat Who Walks Through Walls (1985), including the Circle of Ouroboros and the Temporal Corps. Source: Internet
Razer Ouroboros : WirelessThe Razer Ouroboros gaming mouse is highly configurable, with a dizzying array of options and features. Source: Internet