Noun spirillum has 2 senses
  1. spirillum - spirally twisted elongate rodlike bacteria usually living in stagnant water
    --1 is a kind of
    eubacteria, eubacterium, true bacteria
    --1 is a member of genus Spirillum
    --1 has particulars: ratbite fever bacterium, Spirillum minus
  2. spirillum, spirilla - any flagellated aerobic bacteria having a spirally twisted rodlike form
    --2 is a kind of eubacteria, eubacterium, true bacteria
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