δέρτρον

A. = ἐπίπλους, caul or membrane which conlains the bowels, χολάδας δέρτροισι καλύψεις Antim. 45, cf. Hp. Epid. 5.26; γῦπε . . δέρτρον ἔσω δύνοντες even to the bowels, Od. 11.579.

II. in Od. l.c., δέρτρον is expld. by Gramm., as EM 257.31, etc., of the vulture's beak: hence, of a sharp point, Lyc. 880.

III. pl., = τύμπανα, Hsch.