blas·​to·​my·​co·​sis | \ ˌbla-stə-ˌmī-ˈkō-səs How to pronounce blastomycosis (audio) \

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

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Examples of blastomycosis in a Sentence

Recent Examples on the Web Though mostly asymptomatic, pneumonia is often how blastomycosis manifests. Murat Can Kalem, The Conversation, "Why does the CDC want us to ‘Think Fungus’?," 23 Sep. 2019 The number of fungal outbreaks are on the rise In 2017, there was an unexpected outbreak of an infection called blastomycosis in the metropolitan area surrounding Albany, New York, caused by the fungus Blastomyces. Murat Can Kalem, The Conversation, "Why does the CDC want us to ‘Think Fungus’?," 23 Sep. 2019 Symptoms of blastomycosis usually appear between three weeks and three months after a person has breathed in the fungal spores, but not everyone who is exposed will get sick. Fox News, "Minnesota man contracts rare fungal infection that killed his dog last year," 24 Sep. 2019 So far this year, more than 45 people and 150 animals have been diagnosed with blastomycosis. USA TODAY, "Disney surprise, foreign feral hogs, porous pavement: News from around our 50 states," 13 Sep. 2019 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.

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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.

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Time Traveler for blastomycosis

Time Traveler

The first known use of blastomycosis was in 1899

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Statistics for blastomycosis

Cite this Entry

“Blastomycosis.” Dictionary, Merriam-Webster, Accessed 7 Aug. 2020.

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More Definitions for blastomycosis


blas·​to·​my·​co·​sis | \ -ˌmī-ˈkō-səs How to pronounce blastomycosis (audio) \
plural blastomycoses\ -​ˌsēz How to pronounce blastomycoses (audio) \

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 How to pronounce blastomycotic (audio) \ adjective

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