Mucous membranes secrete mucus. “Mucus” is the noun and “mucous” is the adjective. It’s not only snotty biologists who insist on distinguishing between these two words.
This is the ten-year anniversary of the Common Errors in English Usage calendar. To celebrate, we are bringing back some of our favorite interesting, funny, but sometimes merely silly entries through the years before going on hiatus in 2016.
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