Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun rickettsia
1 sense of rickettsia
Sense 1
rickettsia -- (any of a group of very small rod-shaped bacteria that live in biting arthropods (as ticks and mites) and cause disease in vertebrate hosts; they cause typhus and other febrile diseases in human beings)
=> eubacteria, eubacterium, true bacteria -- (a large group of bacteria having rigid cell walls; motile types have flagella)