συριγμός

A. shrill piping sound, hissing, as of serpents, Arist. HA 536a6, Str. 9.3.10 (pl.); in sign of derision, X. Smp. 6.5; as a military signal, Aen. Tact.24.17; ς. καὶ χλευασμοί Plb. 30.29.6; ς. κάλων the whistling of rigging, D.H. Comp. 16; of the sound of sibilants, ib.14; hissing in the theatre, Plu. Cic. 13; of the cry of elephants, Arr. An. 5.17.7; singing in the ears, Dsc. 2.78.