mucous

1 of 2

adjective

mu·​cous ˈmyü-kəs How to pronounce mucous (audio)
1
: of, relating to, or resembling mucus
2
: secreting or containing mucus
3
: covered with or as if with mucus : slimy

mucous

2 of 2

nonstandard spelling of mucus

nasal mucous

Word History

Etymology

Adjective

Latin mucosus, from mucus

First Known Use

Adjective

1578, in the meaning defined at sense 1

Time Traveler
The first known use of mucous was in 1578

Phrases Containing mucous

Dictionary Entries Near mucous

mucoso-

mucous

mucous membrane

See More Nearby Entries 

Cite this Entry

“Mucous.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mucous. Accessed 28 Nov. 2024.

Copy Citation

Share

Kids Definition

mucous

adjective
mu·​cous ˈmyü-kəs How to pronounce mucous (audio)
1
: of, relating to, or resembling mucus
mucous discharges
2
: producing or containing mucus
a mucous gland

Medical Definition

mucous

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

More from Merriam-Webster on mucous

Nglish: Translation of mucous for Spanish Speakers

Britannica English: Translation of mucous for Arabic Speakers

Love words? Need even more definitions?

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

Popular in Grammar & Usage

See All

How to Use Em Dashes (—), En Dashes (–) , and Hyphens (-)

Plural and Possessive Names: A Guide

The Difference Between 'i.e.' and 'e.g.'

Why is '-ed' sometimes pronounced at the end of a word?

What's the difference between 'fascism' and 'socialism'?
See All

Popular in Wordplay

See All

Terroir, Oenophile, & Magnum: Ten Words About Wine

8 Words for Lesser-Known Musical Instruments

10 Words from Taylor Swift Songs (Merriam's Version)

9 Superb Owl Words

15 Words That Used to Mean Something Different
See All

Games & Quizzes

See All
Play Quordle: Guess all four words in a limited number of tries. Each of your guesses must be a real 5-letter word.
Quordle Can you solve 4 words at once?
Play Blossom: Solve today's spelling word game by finding as many words as you can using just 7 letters. Longer words score more points.
Blossom Word Game Pick the best words!
Play Missing Letter: a crossword with a twist. Each of the 25 puzzle words start with a different letter of the alphabet. Which letter is missing?
Missing Letter A daily crossword with a twist
little chihuahua dressing like a turkey for thanksgiving
Is That Gratitude or Attitude? A Thanksgiving Quiz Decide which words express gratitude and which gi...