sibilatio

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.

sībĭlātĭo (collat. form sĭfĭlātĭo, Non. 531, 4), ōnis, f. [sibilo],

a sibilation , hissing (late Lat.): serpentium, Vulg. Sap. 17, 9: vel stridor, Cael. Aur. Tard. 2, 14, 198.