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Definitions of infectious
  1. adjective
    caused by infection or capable of causing infection
  2. adjective
    easily spread
    "fear is exceedingly infectious; children catch it from their elders"
    Opposite:
  3. of or relating to infection
    "infectious hospital" "infectious disease"
Definition that contains infectious
  • meningitis infectious disease characterized by inflammation of the meninges (the tissues that surround the brain or spinal cord) usually caused by a bacterial infection; symptoms include headache and stiff neck and fever and nausea
  • virulent infectious; having the ability to cause disease
  • psittacosis infectious disease of birds
  • brucellosis infectious bacterial disease of human beings transmitted by contact with infected animals or infected meat or milk products; characterized by fever and headache
  • rickettsial disease infectious disease caused by ticks or mites or body lice infected with rickettsial bacteria
  • malta fever infectious bacterial disease of human beings transmitted by contact with infected animals or infected meat or milk products; characterized by fever and headache
  • lgv infectious disease caused by a species of chlamydia bacterium; transmitted by sexual contact; characterized by genital lesions and swelling of lymph nodes in the groin
  • rickettsiosis infectious disease caused by ticks or mites or body lice infected with rickettsial bacteria
  • parrot disease infectious disease of birds
  • mediterranean fever infectious bacterial disease of human beings transmitted by contact with infected animals or infected meat or milk products; characterized by fever and headache
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