Medicine

1. an unpleasant or unhealthy smell or vapour
4. a substance that stops or slows down the growth of microorganisms
5. medicines that treat infections by killing bacteria
6. protected against not affected by a disease
7. humours the belief that the substances that make up the human body are: black bile, yellow bile, blood and phlegm
8. a heart monitor invented by William Einthoven in the early 1900'
10. heating liquid or food to kill microorganisms
11. organism that can be only seen through a microscope

2. the Romans built these to transport fresh water to highly populated areas
3. A powerful X-ray that provides a cross-section of the human body invented in 1972
6. a substance used to stimulate the production of antibodies and provide immunity against disease
9. to give a weak form of a disease to a person or animal, usually by injection, as a protection against the disease