ἄπλευρος
From LSJ
Ἀναξαγόρας δύο ἔλεγε διδασκαλίας εἶναι θανάτου, τόν τε πρὸ τοῦ γενέσθαι χρόνον καὶ τὸν ὕπνον → Anaxagoras used to say that we have two teachers for death: the time before we were born and sleep | Anaxagoras said that there are two rehearsals for death: the time before being born and sleep
English (LSJ)
ον,
A without sides or ribs, ἄ. στῆθος narrow chest, Arist. Phgn.810a3, cf. 809b7 (Comp.); of persons, narrow-chested, opp. εὔπλευροι, ib.810b13, Teles p.55.3 H., Mnesith. ap. Orib.21.7.6 (Sup.).
German (Pape)
[Seite 292] (πλευρά), (ohne Ribben), Teles bei Stob. Flor. 108, 83, von schlechten Seiten; Compar., Arist. physiogn. 5.