noun. type genus of Bacteroidaceae; genus of Gram-negative rodlike anaerobic bacteria producing no endospores and no pigment and living in the gut of man and animals.
- bacteria genus
- genus Bacteroides
Example sentences of the word bacteroides
1. Noun, plural
Bacteria such as Pasteurella, bacteroides, and fusobacterium are possible causes of this condition as they create colonies within the lymph node.