Definition of tuberculin in English:
 tuberculin
noun tjʊˈbəːkjʊlɪntəˈbərkjələn
mass nounA 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 sentencesExamples
-  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.
 -  The tuberculin skin test is used to diagnose latent tuberculosis infection, but it requires two visits and skilled personnel for test placement and interpretation.
 -  All pregnant patients with HIV infection should also undergo tuberculin skin testing as part of their routine prenatal care.
 -  The usual screening test for tuberculosis is the Mantoux skin test with five tuberculin units of purified protein derivative.
 
Origin
  
Late 19th century: from Latin tuberculum (see tubercle) + -in1.
   Definition of tuberculin in US English:
 tuberculin
nountəˈbərkjələntəˈbərkyələn
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 sentencesExamples
-  Tuberculin skin testing with tuberculin purified protein derivative is used to screen persons for latent tuberculosis infection.
 -  The tuberculin skin test is used to diagnose latent tuberculosis infection, but it requires two visits and skilled personnel for test placement and interpretation.
 -  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.
 -  The usual screening test for tuberculosis is the Mantoux skin test with five tuberculin units of purified protein derivative.
 
Origin
  
Late 19th century: from Latin tuberculum (see tubercle) + -in.