A drug that inhibits the synthesis of DNA and so is classified as an antimetabolite. Hydroxyurea is used to treat a number of diseases, including chronic myeloid leukemia (CML), polycythemia vera, carcinoma of the head and neck, ovary, and cervix, melanoma, and sickle cell disease. Hydroxyurea is taken orally.
In Greek mythology, a goddess considered to be the guardian or personification of health. Hygieia was the daughter of Asclepius, the god of healing. In Greek, “hygieia” means health.
The science of preventive medicine and the preservation of health. Also commonly used as a euphemism for cleanliness and proper sanitation.
- Hygiene hypothesis
— the lower incidence of allergy in those living on farms or in rural areas (due possibly to more exposure to bacteria in barns and elsewhere in the country); the lower incidence of allergy in younger children of large families with 3 or more older siblings (due perhaps to repeated exposure to infection from older […]
A thin membrane that may completely or partially cover the vaginal opening before first sexual intercourse but that usually disappears before puberty.
The muscle that permits the tongue to be held on the floor of the mouth.