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tuberculin Line breaks: tu¦ber¦cu|lin
Pronunciation: /tjʊˈbəːkjʊlɪn/

Definition of tuberculin in English:


[mass noun]
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.
Example sentences
  • Tuberculin skin testing with tuberculin purified protein derivative is used to screen persons for latent tuberculosis infection.
  • Sputum culture and smears, tuberculin testing, and radiography are all essentially 19th century inventions.
  • All pregnant patients with HIV infection should also undergo tuberculin skin testing as part of their routine prenatal care.


Late 19th century: from Latin tuberculum (see tubercle) + -in1.

Definition of tuberculin in:
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