δίεδρος
From LSJ
πρῶτον μὲν οὖν ὄστρεια παρὰ Νηρεῖ τινι ἰδὼν γέροντι φυκί ἠμφιεσμένα ἔλαβον ἐχίνους τ' ἐστὶ γὰρ προοίμιον δείπνου χαριέντως ταῦτα πεπρυτανευμένου → So first I spotted oysters wrapped in seaweed at the shop of some old Nereus, and sea urchins, which I bought; these were the appetizers for a delightfully managed dinner
English (LSJ)
ον, (ἕδρα)
A sitting apart, opp. σύνεδρος, Arist.HA608b28. 2 = διαφανής, Hsch. II δίεδρον, τό, tripod-stand, Callix. 2. 2 chaise-longue, Antyll. ap. Orib.10.37.5, Erot. (pl.), Suid. s.v. ζεῦγος ἡμιονικόν.
German (Pape)
[Seite 617] aus einander sitzend, feindlich, Ggstz σύνεδρος, s. διεδρία, Arist. a. a. Q.; – ὁ δίεδρος, = διέδριον, Ath. V, 197 b.