| bacteroid | (n) a rodlike bacterium (especially any of the rod-shaped or branched bacteria in the root nodules of nitrogen-fixing plants) |
| bacteroidaceae | (n) family of bacteria living usually in the alimentary canal or on mucous surfaces of warm-blooded animals; sometimes associated with acute infective processes, Syn. family Bacteroidaceae |
| bacteroidal | (adj) resembling bacteria, Syn. bacteroid, bacterioidal, bacterioid |
| bacteroides | (n) 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, Syn. genus Bacteroides |