NCIt definition : A species of Gram-positive, rod shaped, facultatively anaerobic bacteria in the phylum
Firmicutes. This species is nonmotile and non spore forming, catalase negative, and
obligately heterofermentative, producing both D- and L-lactic acid. L. oris is a normal
flora component of the human oral cavity and gastrointestinal tract.;
Alternative definition : CDISC: Any bacterial organism that can be assigned to the species Lactobacillus oris.;