δελτοειδής
From LSJ
κεῖται μὲν γαίῃ φθίμενον δέμας, ἡ δὲ δοθεῖσα ψυχή μοι ναίει δώματ' ἐπουράνια → my body lies mouldering in the ground, but the soul entrusted to me dwells in heavenly abodes
English (LSJ)
ές,
A delta-shaped, triangular, Hsch. s.v. καρχήσιον; of the deltoid muscle, Gal.2.354. Adv. -δῶς Ruf.Oss.10.