πλατυκέφαλος
From LSJ
ὁ αὐτὸς ἔφησε τὸν μὲν ὕπνον ὀλιγοχρόνιον θάνατον, τὸν δὲ θάνατον πολυχρόνιον ὕπνον → Plato said that sleep was a short-lived death but death was a long-lived sleep
English (LSJ)
ον,
A flat-headed, Apollod.Poliorc.146.7, al., Olymp. Hist.p.459 D. II a venomous beast or reptile, Philum.Ven. 32.2.
