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Rickettsia

noun, slang

Definitions

Noun
  1. 1
    Any of a group of gram-negative bacteria, of the genus Rickettsia, carried as parasites by ticks, fleas and lice, that cause typhus and other diseases.
  2. 2
    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 wordnet
  3. 3
    Any bacterium of the order Rickettsiales. informal

Etymology

Borrowed from translingual Rickettsia (genus name), from Howard Taylor Ricketts, equivalent to Ricketts + -ia.

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