from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A harsh, shrill, grating, or creaking sound.
  • n. Pathology A harsh, high-pitched sound in inhalation or exhalation.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A harsh, shrill, unpleasant noise.
  • n. A high pitched sound heard on inspiration resulting from turbulent air flow in the upper airway usually indicative of serious airway obstruction.

from the GNU version of the Collaborative International Dictionary of English

  • n. A harsh, shrill, or creaking noise.

from The Century Dictionary and Cyclopedia

  • n. A harsh, creaking noise.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a whistling sound when breathing (usually heard on inspiration); indicates obstruction of the trachea or larynx


Latin strīdor, from strīdēre, to make harsh sounds, ultimately of imitative origin.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From Latin strīdor ("shrill or harsh sound"), from strīdō ("make a shrill or harsh sound"). (Wiktionary)


  • Noisy breathing (stridor) – An audible wheeze when your baby breathes in.


  • Inspiratory stridor -- This occurs when your child breathes and it indicates a collapse of tissue above the vocal cords.

    Stridor (Noisy Breathing)

  • Expiratory stridor -- This occurs when your child breathes out and it indicates a problem further down the windpipe.

    Stridor (Noisy Breathing)

  • Biphasic stridor -- This occurs when your child breathes in and out, and it indicates a narrowing of the subglottis, the cartilage right below the vocal cords.

    Stridor (Noisy Breathing)

  • It is not what Briony needs—if she had been having stridor, we would have heard the noise in her throat with each sharp intake of air.

    Between Expectations

  • • “Barky” cough that sounds similar to the barking of a seal or dog; making a harsh, raspy, whooping sound when inhaling stridor; drooling; loss of appetite; disinterest in drinking fluids; too tired to cough.

    Baby and Child Emergency First Aid

  • I have witnessed what would seem to be a tonic seizure where the muscles become rigid, the back is arched, I hear a stridor breathing pattern and sometimes Elizabeth screams.

    Archive 2008-10-01

  • His vultus minax, torvus aspectus, pallor in facie, in labiis tremor, stridor in dentibus, &c. 1692.

    Anatomy of Melancholy

  • She asked me to go get the trauma nurse, and asked her, Does that sound like stridor to you?


  • Her stridor (labored breathing) was so bad we call the on call ped and he said with her being so young she needs to come into the ER.

    brile Diary Entry


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  • "So near the hull did they come, that the stridor or bony creak of their gaunt double-jointed pinions was audible."

    - Melville, Billy Budd

    July 21, 2011