A sterile protein extract from cultures of tubercle bacillus, used in a test by hypodermic injection for infection with or immunity to tuberculosis, and also formerly in the treatment of the disease
The administration of tuberculin, usually by intradermal injection, as a test for infection (past or present) with tubercle bacilli or other mycobacteria.
To perform a tuberculin test upon.
(Of cows or their milk) giving, or from cows giving, a negative response to a tuberculin test
Reaction to the administration of tuberculin, especially as a diagnostic test; an instance of this; specifically a positive reaction in this test (typically consisting of a circumscribed area of thickening and reddening of the skin).