| NOUN | animal | 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 |
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| Meaning | 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. | |
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| Member of | Rickettsiaceae, family Rickettsiaceae | microorganism resembling bacteria inhabiting arthropod tissues but capable of causing disease in vertebrates |
| Broader | eubacteria, eubacterium, true bacteria | A large group of bacteria having rigid cell walls |
| Spanish | rickettsia | |
| Catalan | rickèttsia | |
| Adjectives | rickettsial | relating to or caused by rickettsias |
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