A.diaphragm, midriff, Arist.HA509b17, 514a30, PA674a9, al.
2. in insects, division between thorax and abdomen, Id.HA535b8, PA659b16, al.
II. in pl., ropes or braces used to strengthen the hull of a trireme (cf. “ὑποζώννυμι” 11), Pl.R.616c (where a beam of light passing through heaven and earth is compared to τὰ ὑ. τῶν τριήρων), Lg.945c, IG22.1479.49, 1609.108, 1611.335,410, 1612.319, 1622.287,640, 1627.410, 1668.74, 1673.12,13, etc.; ὑ. ἐλάμβανε δώδεκα (sc. ἡ τεσσαρακοντήρης ναῦς): ἑξακοσίων δ᾽ “ἦν ἕκαστον πηχῶν” Callix.1; “ὁ στόμαχος καθάπερ νεὼς τοῦ σώματος ὑ. ὑπάρχει” Herod.Med. in Rh.Mus.58.99; cf. ζώμευμα.