NCIt definition : A species of strictly anaerobic, Gram negative, crescent shaped bacteria assigned
to the phylum Firmicutes. This species is esterase positive and cannot produce acid
from sugars. S. noxia is found in human gingival spaces and is a cause of gingivitis
and periodontal disease.;
Alternative definition : CDISC: Any bacterial organism that can be assigned to the species Selenomonas noxia.;