tine test: a tuberculin test in which a disk with several tines bearing tuberculin antigen is used to puncture the skin; development of a hard red area indicates past or present exposure to tubercle bacilli and the need for further testing
tuberculin test: a skin test to determine past or present infection with the tuberculosis bacterium; based on hypersensitivity of the skin to tuberculin
natural history: the scientific study of plants or animals (more observational than experimental) usually published in popular magazines rather than in academic journals