blas·​to·​my·​co·​sis | \ˌbla-stə-ˌmī-ˈkō-səs \

Definition of blastomycosis 

: any of several fungal infections especially : an infectious disease caused by a yeast fungus (Blastomyces dermititidis) that affects especially the lungs and skin

Examples of blastomycosis in a Sentence

Recent Examples on the Web

It’s known to cause infection—called blastomycosis—in humans and animals. Beth Mole, Ars Technica, "Man gets gruesome fungal lesion after snipping pimple with dirty wood tools," 6 Dec. 2017 Most notable, over the past year or so, the family told her, three dogs at the development, including one belonging to the boy’s grandparents, had been infected with blastomycosis. Lisa Sanders, M.d., New York Times, "If the Boy Had Pneumonia, Why Did He Have Odd Sores on His Body?," 10 Oct. 2017

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

First Known Use of blastomycosis

1899, in the meaning defined above

History and Etymology for blastomycosis

New Latin Blastomyces, singular of Blastomycetes, former taxon comprising yeasts (from blasto- blasto- + -mycetes, borrowed from Greek mýkētes, plural of mýkēs "mushroom, fungus") + -osis — more at myc-

Note: The disease-causing agent of blastomycosis is given the specific name Blastomyces dermatitidis by T. Caspar Gilchrist and William Royal Stokes in "A case of pseudo-lupus vulgaris caused by a blastomyces," Journal of Experimental Medicine, vol. 3 (1898), p. 76.

Keep scrolling for more

Learn More about blastomycosis

Share blastomycosis

Statistics for blastomycosis

Look-up Popularity

Time Traveler for blastomycosis

The first known use of blastomycosis was in 1899

See more words from the same year

Keep scrolling for more

More Definitions for blastomycosis


blas·​to·​my·​co·​sis | \-ˌmī-ˈkō-səs \
plural blastomycoses\ -​ˌsēz \

Medical Definition of blastomycosis 

: either of two infectious diseases caused by yeastlike fungi — see blastomyces, north american blastomycosis, south american blastomycosis

Other Words from blastomycosis

blastomycotic \ -​ˈkät-​ik \ adjective

More from Merriam-Webster on blastomycosis Encyclopedia article about blastomycosis

Comments on blastomycosis

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


playful or foolish behavior

Get Word of the Day daily email!

Test Your Vocabulary

Autumn Words of the Day 2018

  • a-top-down-image-of-road-through-an-autumn-forest
  • Which is a synonym of fugacious?
True or False

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


Test Your Knowledge - and learn some interesting things along the way.


Love words? Need even more definitions?

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