Medicine definitions

5. a substance used to stimulate the production of antibodies and provide immunity against a disease
6. protected against, not affected by a disease
8. medicines that test infections by killing bacteria.
9. humors the belief that substances that make up the human body are black bile yellow bile blood and phlegm
10. a substance that stops or slows down the growth of microorganisms
11. an unpleasant or unhealthy smell or vapour

1. romans built these to transport fresh water to highly populated areas
2. an organism that can be seen only through a microscope. Examples include bacteria, protozoa, algae and fungi.
3. a heart monitor invented by Willem Einthoven in the early 1900s
4. scanner a powerful x-ray that provides a cross section of the human body invented in 1972
7. heating food to kill microorganisms
12. to give a weak from of a disease to a person or animal, usually by injection, as protection against that disease