| cavernous rhonchus | A resonating, bubbling sound caused by air entering a cavity partly filled with fluid. Synonym: cavernous rhonchus. (05 Mar 2000) |
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| rhonchus | <clinical sign> A rattling in the throat, also a dry, coarse rale in the bronchial tubes, due to a partial obstruction. Origin: L., Gr. Rhonchos = a snoring sound (18 Nov 1997) |
| sibilant | Hissing or whistling in character; denoting a form of rale. Origin: L. Sibilans (-ant-), pres. P. Of sibilo, to hiss (05 Mar 2000) |
| sibilant rale | A whistling sound caused by air moving through a viscid secretion narrowing the lumen of a bronchus. Synonym: whistling rale. (05 Mar 2000) |