propionibacterium
noun
pro·pi·oni·bac·te·ri·um
ˌprō-pē-ˌän-ə-bak-ˈtir-ē-əm 
1
capitalized
: a genus (the type of the family Propionibacteriaceae) of gram-positive nonmotile usually anaerobic bacteria that form propionic acid by fermenting lactic acid, carbohydrates, and polyalcohols and that include forms found especially on human skin and in dairy products
2
Cite this Entry
“Propionibacterium.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/propionibacterium. Accessed 4 Nov. 2025.
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