genus of Gram-negative rodlike anaerobic bacteria producing no endospores and no pigment and living in the gut of man and animals
4
a genus of Gram-negative aerobic bacteria that occur as pathogens and parasite in many animals (including humans)
5
n any flagellated aerobic bacteria having a spirally twisted rodlike form n spirally twisted elongate rodlike bacteria usually living in stagnant water n any flagellated aerobic bacteria having a spirally twisted rodlike form
