sibilus

sib·i·lus

(sib'i-lŭs), A sibilant rale. [L. a hissing]

sibilus

S08-859460 (sĭb′ĭ-lŭs) [L. sibilans, hissing] A hissing rale.

sib·i·lant rale

(sib'i-lănt rahl) Whistling sound caused by air moving through a viscid secretion narrowing lumen of a bronchus.
Synonym(s): sibilus.