1. The type species of genus Heliobacter; produces urease and is associated with several gastroduodenal diseases (including gastritis and gastric ulcers and duodenal ulcers and other peptic ulcers)
   - Heliobacter pylori

Type of: bacteria species

• Retrophyllum
• retrorocket
• retrorse
• retrospect
• retrospection
• retrospective
• retrospectively
• retroussé
• retroversion
• retrovert
• Retrovir
• retrovirus
• retrovision
• retry
• retsina
• return
• return address
• return key
• return on invested capital
• return on investment
• return ticket
• returnable
• returnee
• returner
• returning