Noun rickettsiaceae has 1 sense
  1. Rickettsiaceae, family Rickettsiaceae - microorganism resembling bacteria inhabiting arthropod tissues but capable of causing disease in vertebrates
    --1 is a kind of bacteria family
    --1 is a member of Rickettsiales, order Rickettsiales
    --1 has members: genus Rickettsia; rickettsias
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