Noun
A fabled serpent with a head at each end, moving either way.
A genus of harmless lizards, serpentlike in form, without legs, and with both ends so much alike that they appear to have a head at each, and ability to move either way. See Illustration in Appendix.
Source: Webster's dictionaryAppearance A 15th-century amphisbaena on a misericord in Buckinghamshire The amphisbaena has a twin head, that is one at the tail end as well, as though it were not enough for poison to be poured out of one mouth. Source: Internet
By eating the meat of the amphisbaena, one could supposedly attract many lovers of the opposite sex, and slaying one during the full moon could give power to one who is pure of heart and mind. Source: Internet