spirillumPronunciation: /spʌɪˈrɪləm/Definition of spirillum noun (plural spirilla /-lə/) a bacterium with a rigid spiral structure, found in stagnant water and sometimes causing disease. Genus Spirillum; Gram-negative Origin:modern Latin, irregular diminutive of Latin spira 'a coil'spirillum in other Oxford dictionaries Definition of spirillum in the US English dictionary
