·      Hi ha una novel·la que es titula El cercle d’Oroboros. Supose que és el mateix que F. Baixauli anomenava «Uroboros» en la seua novel·la L’ombra del tamariu. No he trobat cap de les dues formes en els diccionaris, de moment. Es tracta de la figura que representa una serp que es mossega la cua. Aquesta figura es documenta en moltíssimes cultures al llarg de tot el món (http://www.best.com/~abacus/oro/ouroboros.html).

·      He trobat en Google (“Oroboros”) una pàgina d’un grup musical anomenat Oroboros, que expliquen el significat del mot: «There is, in Native American mythology, the snake Oroboros, the snake that swallows its tail. The circle formed by the snake has come to symbolize both constancy and change, paradoxically enough.» I una altra (The Suicidal Problem and the Problem of the Suicide): «Oroboros: the snake that eats its own tail, symbol of the whole and hole itself, used in alchemy and associated with witchcraft or magic.»

·      Amb les formes Ouroboros o Uroboros hi ha un fum de pàgines en Google. «The worm, snake, serpent or dragon biting or swallowing its own tail is a powerful symbol of infinity, and also of universal nature, of completion, perfection and totality, the endless round of embodied existence, the union of the chthonic with the celestial. Parallels abound - the figure-8 symbol of infinity (quite possibly derived from the uroboros), the Chinese yin-yang symbol, the Buddhist wheel of Life, etc. The Serpent biting its own tail appears in New Kingdom Egypt (1600 years b.c.e.). It was taken up by the Phonecians and then to the Greeks, who called it the Ouroboros (or uroboros), which means tail-devouror. They considered it the Great World Serpent encircling the earth, associated with the world-ocean. Ouroboros became an important Gnostic symbol, later taken up by Western Alchemy. The diagram at the left shows the famous Ouroboros from the early Alchemical text The Chrysopoeia of Cleopatra (2nd century c.e. Alexandria). The enclosed words read hen to pan - 'The One, the All', or "the all is one." The black and white halves represent the polarity of existence»