mu·​cous | \ ˈmyü-kəs How to pronounce mucous (audio) \

Definition of mucous

1 : of, relating to, or resembling mucus
2 : secreting or containing mucus
3 : covered with or as if with mucus : slimy

Examples of mucous in a Sentence

Recent Examples on the Web

For instance, epithelial cystadenomas are benign growths that can be filled with a watery or mucous-based liquid, according to the Mayo Clinic. Korin Miller, SELF, "The Three Types of Ovarian Cancer You Should Know," 1 Nov. 2018 But recent technological advances are helping us understand that mucous grazers can be picky eaters. Kelly Sutherland, Smithsonian, "These Strange Ocean Creatures Trap Their Food In a Net of Mucus," 3 May 2018 Pneumonic plague includes shortness of breath, chest pain, cough and sometimes bloody mucous. Anna Gunther, CBS News, "Idaho boy recovering from rare case of plague," 13 June 2018 These mucous sheets can function like a filter to ensnare food as small as bacteria. Kelly Sutherland, Smithsonian, "These Strange Ocean Creatures Trap Their Food In a Net of Mucus," 3 May 2018 Some women have ectropion, when the mucous-producing glands that are usually on the inside of the cervix evert onto the outside of the cervix. Sarah Jio, Woman's Day, "8 Things You Didn't Know About Your Vagina," 20 Feb. 2016 Daniel, a 12-year-old Bornean orangutan, was dealing with a sinus infection that left him with labored breathing, coughing, frequent mucous production and a distended air sac, the Phoenix Zoo said in a media release. Robert Gundran, azcentral, "Phoenix Zoo orangutan plagued by sinus problems gets groundbreaking surgery," 22 Mar. 2018 Cough can help remove whatever causes the cough, including mucous and infectious particles. Dr. Judy Schaechter, miamiherald, "She keeps coughing. What can I give her? | Miami Herald," 20 Mar. 2018 Water also boosts the immune system and thins mucous. Julie Washington,, "2018 Flu update: Cuyahoga County hospitalizations approach record numbers," 9 Feb. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'mucous.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of mucous

1578, in the meaning defined at sense 1

History and Etymology for mucous

Latin mucosus, from mucus

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Dictionary Entries near mucous





mucous membrane



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Time Traveler for mucous

The first known use of mucous was in 1578

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mu·​cous | \ ˈmyü-kəs How to pronounce mucous (audio) \

Kids Definition of mucous

: containing or producing mucus a mucous membrane


mu·​cous | \ ˈmyü-kəs How to pronounce mucous (audio) \

Medical Definition of mucous

1 : covered with or as if with mucus a mucous surface
2 : of, relating to, or resembling mucus a mucous secretion
3 : secreting or containing mucus mucous glands of the intestine

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More from Merriam-Webster on mucous

Spanish Central: Translation of mucous

Nglish: Translation of mucous for Spanish Speakers

Britannica English: Translation of mucous for Arabic Speakers

Comments on mucous

What made you want to look up mucous? Please tell us where you read or heard it (including the quote, if possible).


having no equal

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