Bacterium
bacteroides
[ bak-tuh-roi-deez ]
Subclass of:
Bacteroidaceae
Definitions related to bacteroides:
  • A genus of bacteria within the phylum Bacteroidetes consisting of gram-negative bacilli or cocco-bacilli that comprise a major portion of the human normal flora, predominating in the intestinal tract.
    NCI
    U.S. National Cancer Institute, 2021
  • A genus of gram-negative, anaerobic, rod-shaped bacteria. Its organisms are normal inhabitants of the oral, respiratory, intestinal, and urogenital cavities of humans, animals, and insects. Some species may be pathogenic.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2025
  • Any bacteria that is not assigned to the species level but can be assigned to the Bacteroides genus level.
    CDISC Terminology
    Clinical Data Interchange Standards Consortium (CDISC), 2021
  • Genus of gram negative, anaerobic, rod shaped bacteria; its organisms are normal inhabitants of the oral, respiratory, intestinal, and urogenital cavities of humans, animals, and insects; some species may be pathogenic.
    CRISP Thesaurus
    National Institutes of Health, 2006
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