ἐχιδνοκέφαλος
From LSJ
ὁ κόσμος ἀλλοίωσις, ὁ βίος ὑπόληψις → the universe is flux, life is opinion | the universe is transformation: life is opinion | the universe is change, life is a fleeting impression | the universe—mutation: life—opinion
English (LSJ)
ον,
A snakeheaded, Sch.E.Ph.1136.
German (Pape)
[Seite 1126] natterköpfig, Schol. Eur. Phoen. 1136.
Greek (Liddell-Scott)
ἐχιδνοκέφᾰλος: -ον, ἔχων κεφαλὴν ἐχίδνης, Σχόλ. εἰς Εὐρ. Φοιν. 1136.