my·​co·​tox·​in ˌmī-kə-ˈtäk-sən How to pronounce mycotoxin (audio)
: a toxic substance produced by a fungus and especially a mold

Example Sentences

Recent Examples on the Web Lab test results are published on-site, including microbial and mycotoxin test results, which is not always the norm. The Salt Lake Tribune, 21 July 2022 Black Soldier Fly larvae have even been shown to convert even that kind of mycotoxin contaminated waste-stream into a safe animal feed. Steven Savage, Forbes, 13 Apr. 2022 That process generates a waste stream that can contain the mycotoxin. Steven Savage, Forbes, 13 Apr. 2022 In pets, signs of aflatoxin/mycotoxin poisoning include sluggishness, loss of appetite, vomiting, jaundice (yellowish tint to the eyes, gums, or skin due to liver damage), and/or diarrhea. Vanessa Etienne,, 18 Aug. 2021 Colorado for instance, on Sunday will start requiring testing for potentially harmful mycotoxins produced by fungal infections on plants, more than four years after voters approved legal pot there. Trevor Hughes, USA TODAY, 13 Sep. 2019 Labs run several tests to detect bacteria, mycotoxins from mold, heavy metals, and pesticide and fertilizer residue. Jackie Borchardt,, 4 June 2019 Some food writers go so far as to say that mycotoxin-free coffee isn't worth the price. Anne Nickoloff,, 16 Oct. 2017 The more insidious and ubiquitous molds, though, produce no acutely dangerous mycotoxins but can still trigger inflammatory reactions, allergies, and asthma. James Hamblin, The Atlantic, 30 Aug. 2017 See More

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

Word History

First Known Use

1962, in the meaning defined above

Time Traveler
The first known use of mycotoxin was in 1962

Dictionary Entries Near mycotoxin

Cite this Entry

“Mycotoxin.” Dictionary, Merriam-Webster, Accessed 24 Mar. 2023.

Medical Definition


my·​co·​tox·​in -ˈtäk-sən How to pronounce mycotoxin (audio)
: a poisonous substance produced by a fungus and especially a mold see aflatoxin

More from Merriam-Webster on mycotoxin

Love words? Need even more definitions?

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

Which Came First?

  • baby chick with a brown egg
  • hot take or cold shoulder?
True or False

Test your knowledge - and maybe learn something along the way.

Solve today's spelling word game by finding as many words as you can with using just 7 letters. Longer words score more points.

Can you make 12 words with 7 letters?