ˈ ̷ ̷ ̷ ̷ˌbaktə(r) noun
Etymology: New Latin, from nitr- + -bacter
1. capitalized : a genus of rod-shaped nonmotile bacteria (family Nitrobacteriaceae) occurring in soil, securing energy for growth by oxidizing nitrites to nitrates, and growing poorly on organic media
2. -s : any bacterium of the genus Nitrobacter : nitric bacterium