helicobacter

noun

hel·​i·​co·​bac·​ter ˈhel-i-kō-ˌbak-tər 

1

capitalized : a genus of bacteria formerly placed in the genus Campylobacter and including one (H. pylori) associated with gastritis and implicated as a causative agent of gastric and duodenal ulcers

2

: any bacterium of the genus Helicobacter