Keywords and Definitions

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Across
  1. 3. give weak form of disease as protection
  2. 5. medicine that treats infections by killing bacteria
  3. 7. heating liquid to kill microorganisms
  4. 8. romans built to transport fresh water
  5. 9. not affected by disease
  6. 11. organism that can only be seen through a microscope
  7. 12. an X-ray that provides a cross section of human body
Down
  1. 1. substance that slows the growth of microorganisms
  2. 2. belief that the body consists of: black bile, yellow bile, blood and phlegm
  3. 4. a heart monitor invented in the 1900s
  4. 6. a substance that provides immunity against a disease
  5. 10. unpleasant smell or vapour