Medical Dictionary

old tuberculin

noun

Medical Definition of OLD TUBERCULIN

:  tuberculin prepared by boiling, filtering, and concentrating a broth culture of tubercle bacilli and originally introduced as a proposed curative agent for tuberculosis but now used in skin tests to detect tubercular infection

Browse

How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears