τραυλός
ή, όν
A.
mispronouncing letters, lisping, stammering, Hp. Aph. 6.32, Call.Com. 19, PSI 3.220.18 (iii A. D.), etc.; esp. of children, παῖς ἰσχνόφωνος καὶ τ. Hdt. 4.155, cf. Arist. Aud. 801b7, Pr. 902b22.
II.
of the swallow, twittering, APl. 4.141 (Phil.); τραυλὰ μινύρεσθαι AP 9.70 (Mnasalc.), cf. 57 (Pamphil.).
III.
τὸ τ. τῶν λίθων the oily quality in stones, Olymp.Alch.p.97 B.