| A | B |
| Hygiene | practices or conditions that aid in good health; the science that deals with maintenance of good health and th prevention of infection and disease |
| Sanitation | the promotion of hygiene and prevention of disease by working to keep a clean and healthy environment |
| Personal hygiene | an individual's practice of taking care of him or herself in order to maintain good health |
| Dystentery | any of several intestinal disorders usually caused by infection and characterized by stomach pain and diarrhea with passage of mucous and blood |
| Purified | free from undesirable elements or impurities; cleaned |
| Disinfect | to destroy harmful germs; to purify |
| Iodine | a nonmetallic element having important medical uses |
| Ampule | a small, sealed glass container that holds one dose of a solution, usually a medicine, to be administered by infection |
| Chlorine | a gaseous greenish yellow element used as a bleach and disinfectant in water purification |
| Galvanized | coated with zinc |
| Bivouac | a temporary camp or shelter |
| Lice | small, wingless, parasitic insects that live on warm- blooded animals, especially in hair, and suck the animal's blood |