διαφῠή · diaphyē — LSJ
natural break, joint, suture, τὰ ὀστᾶ . . διαφυὰς ἔχει χωρὶς ἀπʼ ἀλλήλων Pl. Phd. 98c, cf. Philostr. VA 4.28; distinction, Pl. Plt. 259d; dissepiment, as in chestnuts, X. An. 5.4.29, cf. Plu. Cic. 1; joint in reeds or grasses, Longus 1.10; divisions between the teeth, Plu. Pyrrh. 3; cleft in rocks, D.S. 5.22.
stratum or vein of earth, stone, metal, Thphr. Lap. 63; δ. καὶ φλέβες D.S. 3.12.
string-basket, PRyl. 97.7 (ii B.C.).