ου (τὸ) :
      1 huître ou en gén. coquillage bivalve, COM. (ATH. 92 b, etc.) ; PLUT. M. 967 c, etc. ;
      2 teinture de pourpre, PLAT. Crat. 424 d.

Étym. cf. lat. ostrea.

or ὄστρειον, τό, oyster; the proper Att. form is ὄστρειον (ὄστρεια… ἔλεγον οἱ ἀρχαῖοι Ath. 3.92e, cf. Moer. p. 285 P. (who recommends ὀστρία [ι] wrongly), Phot., etc.), and this is required by the metre in the earlier Poets, κόγχοι, μύες, κὤστρεια A. Fr. 34; ὄστρεια συμμεμυκότα Epich. 42 (ὄστρεα codd. Ath.); πίννῃσι καὶ ὀστρείοισιν ὁμοίη Cratin. 8; πίνναι, λεπάδες, μύες, ὄστρεια Anaxandr. 41.61 (anap.); while ὄστρεον is used in late Ep., Matro Conv. 16, Nic. Fr. 83, and is found in Pap., PCair. Zen. 82.13 (iii BC), POxy. 738.5 (i AD); — the readings vary in Pl. (v. infr. III), as in Arist., cf. HA 490b10, 525a20; generally, of all bivalves, ib. 525a20, 528a1, Fr. 304, Gal. 12.345.
oyster- or bivalve-shell, Arist. HA 531b5, 590a32.
purple pigment, prob. that produced by the murex, cf. Arist. HA 548a12; ὄστρεον μόνον ἐπιφέρειν Pl. Cra. 424d; ὀστρείῳ ἐναληλιμμένος Id. R. 420c; τὰ σώματα ἐκέχριντο ὀστρείῳ Callix. 2; ὄστρεα· τὰ κογχύλια, Λάκωνες ἄνθος, Hsch.

τό, = ὄστρειον, Auster, Muschel ; Plat. Tim. 92 ; ὄστρεά (Ath. las ὄστρεια) τε καὶ φύκια καὶ πέτρας, Rep. X.611d ; oft bei Ath. aus Comic. – Purpurfarbe, Plat. Crat. 424d, wahrscheinlich eine Art Lackfarbe.