θρίξ

A. τρίχεσιν J. AJ 16.7.3 is f.l. for τρύχ‐): - hair, Hom. only in pl., ὀρθαὶ τρίχες ἔσταν ἐνὶ . . μέλεσσι Il. 24.359; mostly, hair of the head, 22.77, Od. 13.431; αἱ ἐν τῇ κεφαλῇ τρίχες Th. 1.6; sheep's wool, Il. 3.273, Hes. Op. 517; pig's bristles, Il. 19.254, Od. 10.239; τρίχες ἄκραι οὐραῖαι, of a horse's tail, Il. 23.519; ἀνάστασις τῶν τριχῶν, of a lark's crest, Gal. 12.361.

II. later in sg. collectively, A. Th. 535, Ag. 562, S. El. 451; τριχὸς πλόκαμος, βόστρυχος, A. Th. 564 (lyr.), Ch. 229; γενείον θρίξ Id. Pers. 1056; κόμη θρίξ LXX Nu. 6.6; Ἐπαφρόδιτον . . τὴν παιδικὴν τρίχα Ὑγίᾳ (sc. ἀνέθηκεν) IG 12(5).173 (Paros, i A.D.); of a horse's mane, S. Fr. 475; of dogs, X. Cyn. 4.8 (sg. and pl.).

2. a single hair, οὐδὲ τρίχ[α] Alc. Supp. 14.10: prov., θρὶξ ἀνὰ μέσσον only a hair's breadth wanting, Theoc. 14.9, cf. X. Smp. 6.2; ἄξιον τριχός, i.e. good for nothing, Ar. Ra. 614; οὐδ’ ἂν τριχὸς πριαίμην Eup. 7.18D.; ἐκ τριχὸς κρέμασθαι to hang by a hair, Aristaenet. 2.1, Zen. 3.47; ἀπὸ τ. ἠερτῆσθαι AP 5.229 (Paul. Sil.); ἐπὶ τριχὸς ἦν ἡ σωτηρία Procop. Aed. 6.6; εἰς ἱερὴν τρίχα ἐλθεῖν, i.e. to come to life's end, v.l. in AP 7.164 (Antip. Sid.), but cf. Epigr.Gr. 248.13; μόνον οὐχὶ τῶν τ., φασί, λαμβάνεται 'saute aux yeux', S.E. M. 7.257.

III. Medic., vein on the right lobe of the liver, Hp. Mul. 1.43 (v.l. ἡ σῦριγξ), Gal. 19.104.