✨📕 The NEWThe NEW Collegiate Dictionary, 12th Edition Over 5,000 words added — Buy Now! Collegiate DictionaryBuy Now!

Blastomyces

noun

Blas·​to·​my·​ces ˌblas-tə-ˈmī-ˌsēz How to pronounce Blastomyces (audio)
: a genus of yeastlike fungi that contains the causative agent (B. dermatitidis) of North American blastomycosis and that formerly included the causative agent (Paracoccidioides brasiliensis synonym B. brasiliensis) of South American blastomycosis

Browse Nearby Words

Cite this Entry

“Blastomyces.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/Blastomyces. Accessed 26 Nov. 2025.

Love words? Need even more definitions?

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