Definitions

1. noun

a high-pitched sound, typically harsh and grating, made by a person when they are having difficulty breathing, such as when they have an obstruction in their airway or a severe respiratory illness

“The doctor listened to the stridor of the patient with croup and ordered a chest X-ray to confirm the diagnosis.”

2. verb

to make a high-pitched sound, typically harsh and grating, while breathing

“The patient’s condition worsened, and she began to stridor as she struggled to catch her breath.”