spirillum的复数形
spirilla n : any flagellated aerobic bacteria having a spirally twisted rodlike form [syn: {spirillum}] spirillum n 1: spirally twisted elongate rodlike bacteria usually living in stagnant water 2: any flagellated aerobic bacteria having a spirally twisted rodlike form [syn: {spirilla}] [also: {spirilla} (pl)] spirilla See {spirillum}