mucus
noun
mu·cus ˈmyü-kəs 
: a viscid slippery secretion that is usually rich in mucins and is produced by mucous membranes which it moistens and protects
Example Sentences
Recent Examples on the Web However, Jones’ hilarious, emotional, and, at times, heartbreaking journey guides viewers through a kaleidoscopic telling of three of the most epic, chaotic, and mucus-spattered years in the history of music. 
Toby Grey, BGR, 16 Sep. 2022 The company’s first drug for the disease, Kalydeco, was approved in 2012 to help stabilize the specific proteins, called CFTR, that are crucial for clearing mucus from the airways but are broken or missing in people with cystic fibrosis. Ryan Cross, BostonGlobe.com, 10 Sep. 2022 All that said, yellow or green mucus doesn’t have to signal an infection. Amy Marturana Winderl, SELF, 6 Sep. 2022 Using a steam inhaler to thin out mucus and promote easier drainage. Emilia Benton, Men's Health, 29 Aug. 2022 The third is made from mucus and produced by the lining of the eye, the conjunctiva. Dr. Keith Roach, oregonlive, 16 Aug. 2022 Epithelial cells line the walls of the lungs and are responsible for producing mucus and for initiating several immune responses. William A. Haseltine, Forbes, 11 Aug. 2022 About 81 percent of the mucus contained inorganic sediments, the study found. Margaret Osborne, Smithsonian Magazine, 12 Aug. 2022 The alkaline electric diet is foods that create the least amount of mucus. Julissa Jamesstaff Writer, Los Angeles Times, 5 Aug. 2022 See More
Toby Grey, BGR, 16 Sep. 2022 The company’s first drug for the disease, Kalydeco, was approved in 2012 to help stabilize the specific proteins, called CFTR, that are crucial for clearing mucus from the airways but are broken or missing in people with cystic fibrosis. Ryan Cross, BostonGlobe.com, 10 Sep. 2022 All that said, yellow or green mucus doesn’t have to signal an infection. Amy Marturana Winderl, SELF, 6 Sep. 2022 Using a steam inhaler to thin out mucus and promote easier drainage. Emilia Benton, Men's Health, 29 Aug. 2022 The third is made from mucus and produced by the lining of the eye, the conjunctiva. Dr. Keith Roach, oregonlive, 16 Aug. 2022 Epithelial cells line the walls of the lungs and are responsible for producing mucus and for initiating several immune responses. William A. Haseltine, Forbes, 11 Aug. 2022 About 81 percent of the mucus contained inorganic sediments, the study found. Margaret Osborne, Smithsonian Magazine, 12 Aug. 2022 The alkaline electric diet is foods that create the least amount of mucus. Julissa Jamesstaff Writer, Los Angeles Times, 5 Aug. 2022 See More Word History
Etymology
borrowed from Latin mūcus, muccus "nasal discharge," perhaps going back to *moukos, o-grade derivative of Indo-European *(s)muk- "nasal discharge," *(s)meuk- "undo, loosen, wipe off" — more at myxo-
Note: See note at myxo-.
First Known Use
1597, in the meaning defined above
Kids Definition
mucus
noun
mu·cus ˈmyü-kəs
: a slippery thick sticky substance that coats, protects, and moistens the linings of body passages and spaces (as of the nose, lungs, and intestines)
Medical Definition
mucus
noun
mu·cus ˈmyü-kəs
: a viscid slippery secretion that is usually rich in mucins and is produced by mucous membranes which it moistens and protects