obstructive sleep apnea

noun

variants also obstructive sleep apnea syndrome or obstructive apnea
: sleep apnea that is caused by recurring interruption of breathing during sleep due to obstruction usually of the upper airway especially by weak, redundant, or malformed pharyngeal tissues, that occurs chiefly in overweight middle-aged and elderly individuals, and that results in hypoxemia and frequent arousals during the night and in excessive sleepiness during the day
The study also showed I had some obstructive sleep apnea, in which the airway narrows, especially when the muscles relax in sleep. People with OSA stop breathing momentarily until a lack of oxygen alerts the brain, which wakes them up with a gasp. Melinda Beck, The Wall Street Journal
abbreviation OSA

Dictionary Entries Near obstructive sleep apnea

Cite this Entry

“Obstructive sleep apnea.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/obstructive%20sleep%20apnea. Accessed 3 Dec. 2022.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!


The Great British Vocabulary Quiz

  • union jack speech bubble
  • Named after Sir Robert Peel, what are British police called?
Name That Thing

You know what it looks like… but what is it called?

TAKE THE QUIZ
Universal Daily Crossword

A daily challenge for crossword fanatics.

TAKE THE QUIZ