STRIDOR
stridor
(noun) a whistling sound when breathing (usually heard on inspiration); indicates obstruction of the trachea or larynx
Source: WordNet® 3.1
Etymology
Noun
stridor (countable and uncountable, plural stridors)
A harsh, shrill, unpleasant noise.
(medicine) A high-pitched sound heard on inspiration resulting from turbulent air flow in the upper airway usually indicative of serious airway obstruction.
Source: Wiktionary
Stri"dor, n. Etym: [L., from stridere to make any harsh, grating, or
creaking sound.]
Definition: A harsh, shrill, or creaking noise. Dryden.
Source: Webster’s Unabridged Dictionary 1913 Edition