rickettsia
1. [ noun ] (biology) any of a group of parasitic bacteria that live in arthropods (as ticks and mites) and can cause disease if transmitted to human beings
Related terms: microorganism bacteria
Similar spelling:   rickettsias
  rickettsial
  Ricketts
  Rickettsiales
  rickets
  ricketsialpox
  rickettsiosis
  Ricketson