Lactobacillaceae
noun plural
Lac·to·bac·il·la·ce·ae
ˌlak-tō-ˌbas-ə-ˈlā-sē-ˌē 
: a large family of rod-shaped or spherical gram-negative bacteria that are usually nonmotile and require little or no oxygen, that do not form spores, that require carbohydrates for growth and ferment them chiefly to lactic acid, and that include the lactic acid bacteria see lactobacillus
Cite this Entry
“Lactobacillaceae.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/Lactobacillaceae. Accessed 3 Nov. 2025.
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