spirillum
nounAny of several aerobic bacteria of the genus Spirillum, having an elongated spiral form and bearing tufts of flagellae.
nounAny of various other spiral-shaped bacteria, especially one formerly classified in this genus.
nounA bacterium of the genus Spirillum.
nounA genus or form-genus of Schizomycetes or bacteria, having cylindrical or somewhat compressed spirally twisted cells.
nounA genus of common motile microörganisms (
Any of various
Any of various other spiral-shaped
spirally twisted elongate rodlike bacteria usually living in stagnant water
nounany flagellated aerobic bacteria having a spirally twisted rodlike form