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plural rhonchi, 1829, from Latinized form of Greek rhenkhos, rhankos, properly "a snoring, snorting," from rhenkein "to snore, snort," of imitative origin. Related: Rhonchal; rhonchial.
rhonchus rhon·chus (rŏng'kəs)
n. pl. rhon·chi (-kī)
A coarse rattling sound somewhat like snoring, usually caused by secretion in a bronchial tube.